Finding the Third Proportional to 60,299.50 and 88,642.50

Step by Step Solution

1. Step 1: Write the proportion equation
   60,299.50 : 88,642.50 = 88,642.50 : x
2. Step 2: Convert to fraction form
   60,299.50/88,642.50 = 88,642.50/x
3. Step 3: Cross multiply
   60,299.50x = 88,642.50 × 88,642.50
4. Step 4: Simplify right side
   60,299.50x = 7,857,492,806.25
5. Step 5: Solve for x
   x = 7,857,492,806.25/60,299.50
6. Step 6: Final answer
   x = 130,307.76