Finding the Third Proportional to 354,450 and 777,790.13

Step by Step Solution

1. Step 1: Write the proportion equation
   354,450 : 777,790.13 = 777,790.13 : x
2. Step 2: Convert to fraction form
   354,450/777,790.13 = 777,790.13/x
3. Step 3: Cross multiply
   354,450x = 777,790.13 × 777,790.13
4. Step 4: Simplify right side
   354,450x = 604,957,478,547.52
5. Step 5: Solve for x
   x = 604,957,478,547.52/354,450
6. Step 6: Final answer
   x = 1,706,749.83