Finding the Third Proportional to 66,105 and 99,304.50

Step by Step Solution

1. Step 1: Write the proportion equation
   66,105 : 99,304.50 = 99,304.50 : x
2. Step 2: Convert to fraction form
   66,105/99,304.50 = 99,304.50/x
3. Step 3: Cross multiply
   66,105x = 99,304.50 × 99,304.50
4. Step 4: Simplify right side
   66,105x = 9,861,383,720.25
5. Step 5: Solve for x
   x = 9,861,383,720.25/66,105
6. Step 6: Final answer
   x = 149,177.58