Finding the Third Proportional to 131,630.06 and 278,113.50

Step by Step Solution

1. Step 1: Write the proportion equation
   131,630.06 : 278,113.50 = 278,113.50 : x
2. Step 2: Convert to fraction form
   131,630.06/278,113.50 = 278,113.50/x
3. Step 3: Cross multiply
   131,630.06x = 278,113.50 × 278,113.50
4. Step 4: Simplify right side
   131,630.06x = 77,347,118,882.25
5. Step 5: Solve for x
   x = 77,347,118,882.25/131,630.06
6. Step 6: Final answer
   x = 587,609.83