Finding the Third Proportional to 69,315.75 and 99,049.50

Step by Step Solution

1. Step 1: Write the proportion equation
   69,315.75 : 99,049.50 = 99,049.50 : x
2. Step 2: Convert to fraction form
   69,315.75/99,049.50 = 99,049.50/x
3. Step 3: Cross multiply
   69,315.75x = 99,049.50 × 99,049.50
4. Step 4: Simplify right side
   69,315.75x = 9,810,803,450.25
5. Step 5: Solve for x
   x = 9,810,803,450.25/69,315.75
6. Step 6: Final answer
   x = 141,537.87