Finding the Third Proportional to 131,314.50 and 288,345.38

Step by Step Solution

1. Step 1: Write the proportion equation
   131,314.50 : 288,345.38 = 288,345.38 : x
2. Step 2: Convert to fraction form
   131,314.50/288,345.38 = 288,345.38/x
3. Step 3: Cross multiply
   131,314.50x = 288,345.38 × 288,345.38
4. Step 4: Simplify right side
   131,314.50x = 83,143,055,283.89
5. Step 5: Solve for x
   x = 83,143,055,283.89/131,314.50
6. Step 6: Final answer
   x = 633,159.74