Finding the Third Proportional to 69,785.25 and 99,675.75

Step by Step Solution

1. Step 1: Write the proportion equation
   69,785.25 : 99,675.75 = 99,675.75 : x
2. Step 2: Convert to fraction form
   69,785.25/99,675.75 = 99,675.75/x
3. Step 3: Cross multiply
   69,785.25x = 99,675.75 × 99,675.75
4. Step 4: Simplify right side
   69,785.25x = 9,935,255,138.06
5. Step 5: Solve for x
   x = 9,935,255,138.06/69,785.25
6. Step 6: Final answer
   x = 142,368.98