Finding the Third Proportional to 267,192 and 426,060

Step by Step Solution

1. Step 1: Write the proportion equation
   267,192 : 426,060 = 426,060 : x
2. Step 2: Convert to fraction form
   267,192/426,060 = 426,060/x
3. Step 3: Cross multiply
   267,192x = 426,060 × 426,060
4. Step 4: Simplify right side
   267,192x = 181,527,123,600
5. Step 5: Solve for x
   x = 181,527,123,600/267,192
6. Step 6: Final answer
   x = 679,388.32