Finding the Third Proportional to 264,714 and 399,539.50

Step by Step Solution

1. Step 1: Write the proportion equation
   264,714 : 399,539.50 = 399,539.50 : x
2. Step 2: Convert to fraction form
   264,714/399,539.50 = 399,539.50/x
3. Step 3: Cross multiply
   264,714x = 399,539.50 × 399,539.50
4. Step 4: Simplify right side
   264,714x = 159,631,812,060.25
5. Step 5: Solve for x
   x = 159,631,812,060.25/264,714
6. Step 6: Final answer
   x = 603,035.02