Finding the Third Proportional to 728,123,424 and 1,604,661,588

Step by Step Solution

1. Step 1: Write the proportion equation
   728,123,424 : 1,604,661,588 = 1,604,661,588 : x
2. Step 2: Convert to fraction form
   728,123,424/1,604,661,588 = 1,604,661,588/x
3. Step 3: Cross multiply
   728,123,424x = 1,604,661,588 × 1,604,661,588
4. Step 4: Simplify right side
   728,123,424x = 2,574,938,812,002,681,856
5. Step 5: Solve for x
   x = 2,574,938,812,002,681,856/728,123,424
6. Step 6: Final answer
   x = 3,536,404,306.10