Finding the Third Proportional to 34,081.88 and 69,864.75

Step by Step Solution

1. Step 1: Write the proportion equation
   34,081.88 : 69,864.75 = 69,864.75 : x
2. Step 2: Convert to fraction form
   34,081.88/69,864.75 = 69,864.75/x
3. Step 3: Cross multiply
   34,081.88x = 69,864.75 × 69,864.75
4. Step 4: Simplify right side
   34,081.88x = 4,881,083,292.56
5. Step 5: Solve for x
   x = 4,881,083,292.56/34,081.88
6. Step 6: Final answer
   x = 143,216.40