Finding the Third Proportional to 42,261 and 56,922

Step by Step Solution

1. Step 1: Write the proportion equation
   42,261 : 56,922 = 56,922 : x
2. Step 2: Convert to fraction form
   42,261/56,922 = 56,922/x
3. Step 3: Cross multiply
   42,261x = 56,922 × 56,922
4. Step 4: Simplify right side
   42,261x = 3,240,114,084
5. Step 5: Solve for x
   x = 3,240,114,084/42,261
6. Step 6: Final answer
   x = 76,669.13