Finding the Third Proportional to 123,102 and 266,940

Step by Step Solution

1. Step 1: Write the proportion equation
   123,102 : 266,940 = 266,940 : x
2. Step 2: Convert to fraction form
   123,102/266,940 = 266,940/x
3. Step 3: Cross multiply
   123,102x = 266,940 × 266,940
4. Step 4: Simplify right side
   123,102x = 71,256,963,600
5. Step 5: Solve for x
   x = 71,256,963,600/123,102
6. Step 6: Final answer
   x = 578,844.89