Finding the Third Proportional to 372,978 and 814,273.50

Step by Step Solution

1. Step 1: Write the proportion equation
   372,978 : 814,273.50 = 814,273.50 : x
2. Step 2: Convert to fraction form
   372,978/814,273.50 = 814,273.50/x
3. Step 3: Cross multiply
   372,978x = 814,273.50 × 814,273.50
4. Step 4: Simplify right side
   372,978x = 663,041,332,802.25
5. Step 5: Solve for x
   x = 663,041,332,802.25/372,978
6. Step 6: Final answer
   x = 1,777,695.56