Finding the Third Proportional to 52,953.75 and 81,121.50

Step by Step Solution

1. Step 1: Write the proportion equation
   52,953.75 : 81,121.50 = 81,121.50 : x
2. Step 2: Convert to fraction form
   52,953.75/81,121.50 = 81,121.50/x
3. Step 3: Cross multiply
   52,953.75x = 81,121.50 × 81,121.50
4. Step 4: Simplify right side
   52,953.75x = 6,580,697,762.25
5. Step 5: Solve for x
   x = 6,580,697,762.25/52,953.75
6. Step 6: Final answer
   x = 124,272.55