Finding the Third Proportional to 730,644 and 1,691,472

Step by Step Solution

1. Step 1: Write the proportion equation
   730,644 : 1,691,472 = 1,691,472 : x
2. Step 2: Convert to fraction form
   730,644/1,691,472 = 1,691,472/x
3. Step 3: Cross multiply
   730,644x = 1,691,472 × 1,691,472
4. Step 4: Simplify right side
   730,644x = 2,861,077,526,784
5. Step 5: Solve for x
   x = 2,861,077,526,784/730,644
6. Step 6: Final answer
   x = 3,915,829.77