Finding the Third Proportional to 52,512.47 and 78,425.72

Step by Step Solution

1. Step 1: Write the proportion equation
   52,512.47 : 78,425.72 = 78,425.72 : x
2. Step 2: Convert to fraction form
   52,512.47/78,425.72 = 78,425.72/x
3. Step 3: Cross multiply
   52,512.47x = 78,425.72 × 78,425.72
4. Step 4: Simplify right side
   52,512.47x = 6,150,593,361.45
5. Step 5: Solve for x
   x = 6,150,593,361.45/52,512.47
6. Step 6: Final answer
   x = 117,126.34