Finding the Third Proportional to 212,220 and 463,806

Step by Step Solution

1. Step 1: Write the proportion equation
   212,220 : 463,806 = 463,806 : x
2. Step 2: Convert to fraction form
   212,220/463,806 = 463,806/x
3. Step 3: Cross multiply
   212,220x = 463,806 × 463,806
4. Step 4: Simplify right side
   212,220x = 215,116,005,636
5. Step 5: Solve for x
   x = 215,116,005,636/212,220
6. Step 6: Final answer
   x = 1,013,646.24