Finding the Third Proportional to 553,676 and 1,207,406

Step by Step Solution

1. Step 1: Write the proportion equation
   553,676 : 1,207,406 = 1,207,406 : x
2. Step 2: Convert to fraction form
   553,676/1,207,406 = 1,207,406/x
3. Step 3: Cross multiply
   553,676x = 1,207,406 × 1,207,406
4. Step 4: Simplify right side
   553,676x = 1,457,829,248,836
5. Step 5: Solve for x
   x = 1,457,829,248,836/553,676
6. Step 6: Final answer
   x = 2,633,000.62