Finding the Third Proportional to 53,992.50 and 81,475.50

Step by Step Solution

1. Step 1: Write the proportion equation
   53,992.50 : 81,475.50 = 81,475.50 : x
2. Step 2: Convert to fraction form
   53,992.50/81,475.50 = 81,475.50/x
3. Step 3: Cross multiply
   53,992.50x = 81,475.50 × 81,475.50
4. Step 4: Simplify right side
   53,992.50x = 6,638,257,100.25
5. Step 5: Solve for x
   x = 6,638,257,100.25/53,992.50
6. Step 6: Final answer
   x = 122,947.76