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Finding the Third Proportional to 28,086 and 62,399

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Solution

The third proportional to 28,086 and 62,399 is: 138,632.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,086 : 62,399 = 62,399 : x
  2. Step 2: Convert to fraction form
    28,086/62,399 = 62,399/x
  3. Step 3: Cross multiply
    28,086x = 62,399 × 62,399
  4. Step 4: Simplify right side
    28,086x = 3,893,635,201
  5. Step 5: Solve for x
    x = 3,893,635,201/28,086
  6. Step 6: Final answer
    x = 138,632.60

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.