Finding the Third Proportional to 120,540.75 and 262,510.88

Step by Step Solution

1. Step 1: Write the proportion equation
   120,540.75 : 262,510.88 = 262,510.88 : x
2. Step 2: Convert to fraction form
   120,540.75/262,510.88 = 262,510.88/x
3. Step 3: Cross multiply
   120,540.75x = 262,510.88 × 262,510.88
4. Step 4: Simplify right side
   120,540.75x = 68,911,959,493.27
5. Step 5: Solve for x
   x = 68,911,959,493.27/120,540.75
6. Step 6: Final answer
   x = 571,690.15