Finding the Third Proportional to 100,337.17 and 218,665.83

Step by Step Solution

1. Step 1: Write the proportion equation
   100,337.17 : 218,665.83 = 218,665.83 : x
2. Step 2: Convert to fraction form
   100,337.17/218,665.83 = 218,665.83/x
3. Step 3: Cross multiply
   100,337.17x = 218,665.83 × 218,665.83
4. Step 4: Simplify right side
   100,337.17x = 47,814,744,389.59
5. Step 5: Solve for x
   x = 47,814,744,389.59/100,337.17
6. Step 6: Final answer
   x = 476,540.70