Finding the Third Proportional to 395,401.50 and 630,463.50

Step by Step Solution

1. Step 1: Write the proportion equation
   395,401.50 : 630,463.50 = 630,463.50 : x
2. Step 2: Convert to fraction form
   395,401.50/630,463.50 = 630,463.50/x
3. Step 3: Cross multiply
   395,401.50x = 630,463.50 × 630,463.50
4. Step 4: Simplify right side
   395,401.50x = 397,484,224,832.25
5. Step 5: Solve for x
   x = 397,484,224,832.25/395,401.50
6. Step 6: Final answer
   x = 1,005,267.37