Finding the Third Proportional to 368,502 and 781,288.50

Step by Step Solution

1. Step 1: Write the proportion equation
   368,502 : 781,288.50 = 781,288.50 : x
2. Step 2: Convert to fraction form
   368,502/781,288.50 = 781,288.50/x
3. Step 3: Cross multiply
   368,502x = 781,288.50 × 781,288.50
4. Step 4: Simplify right side
   368,502x = 610,411,720,232.25
5. Step 5: Solve for x
   x = 610,411,720,232.25/368,502
6. Step 6: Final answer
   x = 1,656,467.86