Finding the Third Proportional to 66,007.50 and 99,013.50

Step by Step Solution

1. Step 1: Write the proportion equation
   66,007.50 : 99,013.50 = 99,013.50 : x
2. Step 2: Convert to fraction form
   66,007.50/99,013.50 = 99,013.50/x
3. Step 3: Cross multiply
   66,007.50x = 99,013.50 × 99,013.50
4. Step 4: Simplify right side
   66,007.50x = 9,803,673,182.25
5. Step 5: Solve for x
   x = 9,803,673,182.25/66,007.50
6. Step 6: Final answer
   x = 148,523.63