Finding the Third Proportional to 353,196 and 769,439.25

Step by Step Solution

1. Step 1: Write the proportion equation
   353,196 : 769,439.25 = 769,439.25 : x
2. Step 2: Convert to fraction form
   353,196/769,439.25 = 769,439.25/x
3. Step 3: Cross multiply
   353,196x = 769,439.25 × 769,439.25
4. Step 4: Simplify right side
   353,196x = 592,036,759,440.56
5. Step 5: Solve for x
   x = 592,036,759,440.56/353,196
6. Step 6: Final answer
   x = 1,676,227.25