Finding the Third Proportional to 61,087.50 and 89,447.63

Step by Step Solution

1. Step 1: Write the proportion equation
   61,087.50 : 89,447.63 = 89,447.63 : x
2. Step 2: Convert to fraction form
   61,087.50/89,447.63 = 89,447.63/x
3. Step 3: Cross multiply
   61,087.50x = 89,447.63 × 89,447.63
4. Step 4: Simplify right side
   61,087.50x = 8,000,877,618.14
5. Step 5: Solve for x
   x = 8,000,877,618.14/61,087.50
6. Step 6: Final answer
   x = 130,974.06