Finding the Third Proportional to 375,357 and 781,777.50

Step by Step Solution

1. Step 1: Write the proportion equation
   375,357 : 781,777.50 = 781,777.50 : x
2. Step 2: Convert to fraction form
   375,357/781,777.50 = 781,777.50/x
3. Step 3: Cross multiply
   375,357x = 781,777.50 × 781,777.50
4. Step 4: Simplify right side
   375,357x = 611,176,059,506.25
5. Step 5: Solve for x
   x = 611,176,059,506.25/375,357
6. Step 6: Final answer
   x = 1,628,252.73