Finding the Third Proportional to 218,432 and 476,392

Step by Step Solution

1. Step 1: Write the proportion equation
   218,432 : 476,392 = 476,392 : x
2. Step 2: Convert to fraction form
   218,432/476,392 = 476,392/x
3. Step 3: Cross multiply
   218,432x = 476,392 × 476,392
4. Step 4: Simplify right side
   218,432x = 226,949,337,664
5. Step 5: Solve for x
   x = 226,949,337,664/218,432
6. Step 6: Final answer
   x = 1,038,993.09