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Finding the Third Proportional to 1,299,978 and 2,898,687

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Solution

The third proportional to 1,299,978 and 2,898,687 is: 6,463,483.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,978 : 2,898,687 = 2,898,687 : x
  2. Step 2: Convert to fraction form
    1,299,978/2,898,687 = 2,898,687/x
  3. Step 3: Cross multiply
    1,299,978x = 2,898,687 × 2,898,687
  4. Step 4: Simplify right side
    1,299,978x = 8,402,386,323,969
  5. Step 5: Solve for x
    x = 8,402,386,323,969/1,299,978
  6. Step 6: Final answer
    x = 6,463,483.48

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Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.