Finding the Third Proportional to 53,141 and 81,385.50

Step by Step Solution

1. Step 1: Write the proportion equation
   53,141 : 81,385.50 = 81,385.50 : x
2. Step 2: Convert to fraction form
   53,141/81,385.50 = 81,385.50/x
3. Step 3: Cross multiply
   53,141x = 81,385.50 × 81,385.50
4. Step 4: Simplify right side
   53,141x = 6,623,599,610.25
5. Step 5: Solve for x
   x = 6,623,599,610.25/53,141
6. Step 6: Final answer
   x = 124,641.98