Finding the Third Proportional to 540,676 and 790,470

Step by Step Solution

1. Step 1: Write the proportion equation
   540,676 : 790,470 = 790,470 : x
2. Step 2: Convert to fraction form
   540,676/790,470 = 790,470/x
3. Step 3: Cross multiply
   540,676x = 790,470 × 790,470
4. Step 4: Simplify right side
   540,676x = 624,842,820,900
5. Step 5: Solve for x
   x = 624,842,820,900/540,676
6. Step 6: Final answer
   x = 1,155,669.61