Finding the Third Proportional to 264,712 and 399,536.50

Step by Step Solution

1. Step 1: Write the proportion equation
   264,712 : 399,536.50 = 399,536.50 : x
2. Step 2: Convert to fraction form
   264,712/399,536.50 = 399,536.50/x
3. Step 3: Cross multiply
   264,712x = 399,536.50 × 399,536.50
4. Step 4: Simplify right side
   264,712x = 159,629,414,832.25
5. Step 5: Solve for x
   x = 159,629,414,832.25/264,712
6. Step 6: Final answer
   x = 603,030.52