Finding the Third Proportional to 368,493 and 781,273.50

Step by Step Solution

1. Step 1: Write the proportion equation
   368,493 : 781,273.50 = 781,273.50 : x
2. Step 2: Convert to fraction form
   368,493/781,273.50 = 781,273.50/x
3. Step 3: Cross multiply
   368,493x = 781,273.50 × 781,273.50
4. Step 4: Simplify right side
   368,493x = 610,388,281,802.25
5. Step 5: Solve for x
   x = 610,388,281,802.25/368,493
6. Step 6: Final answer
   x = 1,656,444.71