Finding the Third Proportional to 131,292 and 288,112.50

Step by Step Solution

1. Step 1: Write the proportion equation
   131,292 : 288,112.50 = 288,112.50 : x
2. Step 2: Convert to fraction form
   131,292/288,112.50 = 288,112.50/x
3. Step 3: Cross multiply
   131,292x = 288,112.50 × 288,112.50
4. Step 4: Simplify right side
   131,292x = 83,008,812,656.25
5. Step 5: Solve for x
   x = 83,008,812,656.25/131,292
6. Step 6: Final answer
   x = 632,245.78