Finding the Third Proportional to 69,022.13 and 89,899.88

Step by Step Solution

1. Step 1: Write the proportion equation
   69,022.13 : 89,899.88 = 89,899.88 : x
2. Step 2: Convert to fraction form
   69,022.13/89,899.88 = 89,899.88/x
3. Step 3: Cross multiply
   69,022.13x = 89,899.88 × 89,899.88
4. Step 4: Simplify right side
   69,022.13x = 8,081,987,525.02
5. Step 5: Solve for x
   x = 8,081,987,525.02/69,022.13
6. Step 6: Final answer
   x = 117,092.71