Finding the Third Proportional to 45,339.75 and 69,991.88

Step by Step Solution

1. Step 1: Write the proportion equation
   45,339.75 : 69,991.88 = 69,991.88 : x
2. Step 2: Convert to fraction form
   45,339.75/69,991.88 = 69,991.88/x
3. Step 3: Cross multiply
   45,339.75x = 69,991.88 × 69,991.88
4. Step 4: Simplify right side
   45,339.75x = 4,898,862,566.02
5. Step 5: Solve for x
   x = 4,898,862,566.02/45,339.75
6. Step 6: Final answer
   x = 108,047.85