Finding the Third Proportional to 69,086.25 and 109,858.50

Step by Step Solution

1. Step 1: Write the proportion equation
   69,086.25 : 109,858.50 = 109,858.50 : x
2. Step 2: Convert to fraction form
   69,086.25/109,858.50 = 109,858.50/x
3. Step 3: Cross multiply
   69,086.25x = 109,858.50 × 109,858.50
4. Step 4: Simplify right side
   69,086.25x = 12,068,890,022.25
5. Step 5: Solve for x
   x = 12,068,890,022.25/69,086.25
6. Step 6: Final answer
   x = 174,693.08