Finding the Third Proportional to 375,354 and 781,771.50

Step by Step Solution

1. Step 1: Write the proportion equation
   375,354 : 781,771.50 = 781,771.50 : x
2. Step 2: Convert to fraction form
   375,354/781,771.50 = 781,771.50/x
3. Step 3: Cross multiply
   375,354x = 781,771.50 × 781,771.50
4. Step 4: Simplify right side
   375,354x = 611,166,678,212.25
5. Step 5: Solve for x
   x = 611,166,678,212.25/375,354
6. Step 6: Final answer
   x = 1,628,240.75