Finding the Third Proportional to 345,193.50 and 753,142.50

Step by Step Solution

1. Step 1: Write the proportion equation
   345,193.50 : 753,142.50 = 753,142.50 : x
2. Step 2: Convert to fraction form
   345,193.50/753,142.50 = 753,142.50/x
3. Step 3: Cross multiply
   345,193.50x = 753,142.50 × 753,142.50
4. Step 4: Simplify right side
   345,193.50x = 567,223,625,306.25
5. Step 5: Solve for x
   x = 567,223,625,306.25/345,193.50
6. Step 6: Final answer
   x = 1,643,204.83