Finding the Third Proportional to 53,060.25 and 80,273.50

Step by Step Solution

1. Step 1: Write the proportion equation
   53,060.25 : 80,273.50 = 80,273.50 : x
2. Step 2: Convert to fraction form
   53,060.25/80,273.50 = 80,273.50/x
3. Step 3: Cross multiply
   53,060.25x = 80,273.50 × 80,273.50
4. Step 4: Simplify right side
   53,060.25x = 6,443,834,802.25
5. Step 5: Solve for x
   x = 6,443,834,802.25/53,060.25
6. Step 6: Final answer
   x = 121,443.73