Finding the Third Proportional to 157,608.28 and 342,007.31

Step by Step Solution

1. Step 1: Write the proportion equation
   157,608.28 : 342,007.31 = 342,007.31 : x
2. Step 2: Convert to fraction form
   157,608.28/342,007.31 = 342,007.31/x
3. Step 3: Cross multiply
   157,608.28x = 342,007.31 × 342,007.31
4. Step 4: Simplify right side
   157,608.28x = 116,969,001,803.47
5. Step 5: Solve for x
   x = 116,969,001,803.47/157,608.28
6. Step 6: Final answer
   x = 742,150.10