Finding the Third Proportional to 123,018.75 and 267,381

Step by Step Solution

1. Step 1: Write the proportion equation
   123,018.75 : 267,381 = 267,381 : x
2. Step 2: Convert to fraction form
   123,018.75/267,381 = 267,381/x
3. Step 3: Cross multiply
   123,018.75x = 267,381 × 267,381
4. Step 4: Simplify right side
   123,018.75x = 71,492,599,161
5. Step 5: Solve for x
   x = 71,492,599,161/123,018.75
6. Step 6: Final answer
   x = 581,152.05