Finding the Third Proportional to 345,718.50 and 754,476

Step by Step Solution

1. Step 1: Write the proportion equation
   345,718.50 : 754,476 = 754,476 : x
2. Step 2: Convert to fraction form
   345,718.50/754,476 = 754,476/x
3. Step 3: Cross multiply
   345,718.50x = 754,476 × 754,476
4. Step 4: Simplify right side
   345,718.50x = 569,234,034,576
5. Step 5: Solve for x
   x = 569,234,034,576/345,718.50
6. Step 6: Final answer
   x = 1,646,524.66