Finding the Third Proportional to 353,155.50 and 765,042.75

Step by Step Solution

1. Step 1: Write the proportion equation
   353,155.50 : 765,042.75 = 765,042.75 : x
2. Step 2: Convert to fraction form
   353,155.50/765,042.75 = 765,042.75/x
3. Step 3: Cross multiply
   353,155.50x = 765,042.75 × 765,042.75
4. Step 4: Simplify right side
   353,155.50x = 585,290,409,327.56
5. Step 5: Solve for x
   x = 585,290,409,327.56/353,155.50
6. Step 6: Final answer
   x = 1,657,316.42