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Finding the Third Proportional to 718,539 and 999,060

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Solution

The third proportional to 718,539 and 999,060 is: 1,389,097.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,539 : 999,060 = 999,060 : x
  2. Step 2: Convert to fraction form
    718,539/999,060 = 999,060/x
  3. Step 3: Cross multiply
    718,539x = 999,060 × 999,060
  4. Step 4: Simplify right side
    718,539x = 998,120,883,600
  5. Step 5: Solve for x
    x = 998,120,883,600/718,539
  6. Step 6: Final answer
    x = 1,389,097.72

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.