Finding the Third Proportional to 123,640.50 and 237,426

Step by Step Solution

1. Step 1: Write the proportion equation
   123,640.50 : 237,426 = 237,426 : x
2. Step 2: Convert to fraction form
   123,640.50/237,426 = 237,426/x
3. Step 3: Cross multiply
   123,640.50x = 237,426 × 237,426
4. Step 4: Simplify right side
   123,640.50x = 56,371,105,476
5. Step 5: Solve for x
   x = 56,371,105,476/123,640.50
6. Step 6: Final answer
   x = 455,927.51