Finding the Third Proportional to 218,930 and 472,060

Step by Step Solution

1. Step 1: Write the proportion equation
   218,930 : 472,060 = 472,060 : x
2. Step 2: Convert to fraction form
   218,930/472,060 = 472,060/x
3. Step 3: Cross multiply
   218,930x = 472,060 × 472,060
4. Step 4: Simplify right side
   218,930x = 222,840,643,600
5. Step 5: Solve for x
   x = 222,840,643,600/218,930
6. Step 6: Final answer
   x = 1,017,862.53