Finding the Third Proportional to 345,096 and 754,344

Step by Step Solution

1. Step 1: Write the proportion equation
   345,096 : 754,344 = 754,344 : x
2. Step 2: Convert to fraction form
   345,096/754,344 = 754,344/x
3. Step 3: Cross multiply
   345,096x = 754,344 × 754,344
4. Step 4: Simplify right side
   345,096x = 569,034,870,336
5. Step 5: Solve for x
   x = 569,034,870,336/345,096
6. Step 6: Final answer
   x = 1,648,917.61