Finding the Third Proportional to 53,657.75 and 72,874.50

Step by Step Solution

1. Step 1: Write the proportion equation
   53,657.75 : 72,874.50 = 72,874.50 : x
2. Step 2: Convert to fraction form
   53,657.75/72,874.50 = 72,874.50/x
3. Step 3: Cross multiply
   53,657.75x = 72,874.50 × 72,874.50
4. Step 4: Simplify right side
   53,657.75x = 5,310,692,750.25
5. Step 5: Solve for x
   x = 5,310,692,750.25/53,657.75
6. Step 6: Final answer
   x = 98,973.45