Finding the Third Proportional to 212,440 and 462,344

Step by Step Solution

1. Step 1: Write the proportion equation
   212,440 : 462,344 = 462,344 : x
2. Step 2: Convert to fraction form
   212,440/462,344 = 462,344/x
3. Step 3: Cross multiply
   212,440x = 462,344 × 462,344
4. Step 4: Simplify right side
   212,440x = 213,761,974,336
5. Step 5: Solve for x
   x = 213,761,974,336/212,440
6. Step 6: Final answer
   x = 1,006,222.81