Finding the Third Proportional to 81,101.25 and 108,484.31

Step by Step Solution

1. Step 1: Write the proportion equation
   81,101.25 : 108,484.31 = 108,484.31 : x
2. Step 2: Convert to fraction form
   81,101.25/108,484.31 = 108,484.31/x
3. Step 3: Cross multiply
   81,101.25x = 108,484.31 × 108,484.31
4. Step 4: Simplify right side
   81,101.25x = 11,768,846,058.60
5. Step 5: Solve for x
   x = 11,768,846,058.60/81,101.25
6. Step 6: Final answer
   x = 145,113.00