Finding the Third Proportional to 728,123,424 and 1,604,661,589.50

Step by Step Solution

1. Step 1: Write the proportion equation
   728,123,424 : 1,604,661,589.50 = 1,604,661,589.50 : x
2. Step 2: Convert to fraction form
   728,123,424/1,604,661,589.50 = 1,604,661,589.50/x
3. Step 3: Cross multiply
   728,123,424x = 1,604,661,589.50 × 1,604,661,589.50
4. Step 4: Simplify right side
   728,123,424x = 2,574,938,816,816,666,624
5. Step 5: Solve for x
   x = 2,574,938,816,816,666,624/728,123,424
6. Step 6: Final answer
   x = 3,536,404,312.71