Finding the Third Proportional to 721,260 and 1,061,478

Step by Step Solution

1. Step 1: Write the proportion equation
   721,260 : 1,061,478 = 1,061,478 : x
2. Step 2: Convert to fraction form
   721,260/1,061,478 = 1,061,478/x
3. Step 3: Cross multiply
   721,260x = 1,061,478 × 1,061,478
4. Step 4: Simplify right side
   721,260x = 1,126,735,544,484
5. Step 5: Solve for x
   x = 1,126,735,544,484/721,260
6. Step 6: Final answer
   x = 1,562,176.67