Finding the Third Proportional to 218,264 and 482,412

Step by Step Solution

1. Step 1: Write the proportion equation
   218,264 : 482,412 = 482,412 : x
2. Step 2: Convert to fraction form
   218,264/482,412 = 482,412/x
3. Step 3: Cross multiply
   218,264x = 482,412 × 482,412
4. Step 4: Simplify right side
   218,264x = 232,721,337,744
5. Step 5: Solve for x
   x = 232,721,337,744/218,264
6. Step 6: Final answer
   x = 1,066,237.85