Finding the Third Proportional to 65,515.50 and 98,815.50

Step by Step Solution

1. Step 1: Write the proportion equation
   65,515.50 : 98,815.50 = 98,815.50 : x
2. Step 2: Convert to fraction form
   65,515.50/98,815.50 = 98,815.50/x
3. Step 3: Cross multiply
   65,515.50x = 98,815.50 × 98,815.50
4. Step 4: Simplify right side
   65,515.50x = 9,764,503,040.25
5. Step 5: Solve for x
   x = 9,764,503,040.25/65,515.50
6. Step 6: Final answer
   x = 149,041.11