Finding the Third Proportional to 59,680.50 and 131,779.50

Step by Step Solution

1. Step 1: Write the proportion equation
   59,680.50 : 131,779.50 = 131,779.50 : x
2. Step 2: Convert to fraction form
   59,680.50/131,779.50 = 131,779.50/x
3. Step 3: Cross multiply
   59,680.50x = 131,779.50 × 131,779.50
4. Step 4: Simplify right side
   59,680.50x = 17,365,836,620.25
5. Step 5: Solve for x
   x = 17,365,836,620.25/59,680.50
6. Step 6: Final answer
   x = 290,980.08