Finding the Third Proportional to 243,231 and 522,426

Step by Step Solution

1. Step 1: Write the proportion equation
   243,231 : 522,426 = 522,426 : x
2. Step 2: Convert to fraction form
   243,231/522,426 = 522,426/x
3. Step 3: Cross multiply
   243,231x = 522,426 × 522,426
4. Step 4: Simplify right side
   243,231x = 272,928,925,476
5. Step 5: Solve for x
   x = 272,928,925,476/243,231
6. Step 6: Final answer
   x = 1,122,097.62