Finding the Third Proportional to 59,422.50 and 90,229.50

Step by Step Solution

1. Step 1: Write the proportion equation
   59,422.50 : 90,229.50 = 90,229.50 : x
2. Step 2: Convert to fraction form
   59,422.50/90,229.50 = 90,229.50/x
3. Step 3: Cross multiply
   59,422.50x = 90,229.50 × 90,229.50
4. Step 4: Simplify right side
   59,422.50x = 8,141,362,670.25
5. Step 5: Solve for x
   x = 8,141,362,670.25/59,422.50
6. Step 6: Final answer
   x = 137,008.08