Finding the Third Proportional to 342,713.25 and 742,626

Step by Step Solution

1. Step 1: Write the proportion equation
   342,713.25 : 742,626 = 742,626 : x
2. Step 2: Convert to fraction form
   342,713.25/742,626 = 742,626/x
3. Step 3: Cross multiply
   342,713.25x = 742,626 × 742,626
4. Step 4: Simplify right side
   342,713.25x = 551,493,375,876
5. Step 5: Solve for x
   x = 551,493,375,876/342,713.25
6. Step 6: Final answer
   x = 1,609,197.71