Finding the Third Proportional to 355,159.69 and 754,651.69

Step by Step Solution

1. Step 1: Write the proportion equation
   355,159.69 : 754,651.69 = 754,651.69 : x
2. Step 2: Convert to fraction form
   355,159.69/754,651.69 = 754,651.69/x
3. Step 3: Cross multiply
   355,159.69x = 754,651.69 × 754,651.69
4. Step 4: Simplify right side
   355,159.69x = 569,499,169,446.60
5. Step 5: Solve for x
   x = 569,499,169,446.60/355,159.69
6. Step 6: Final answer
   x = 1,603,501.72