Finding the Third Proportional to 264,018 and 578,701.50

Step by Step Solution

1. Step 1: Write the proportion equation
   264,018 : 578,701.50 = 578,701.50 : x
2. Step 2: Convert to fraction form
   264,018/578,701.50 = 578,701.50/x
3. Step 3: Cross multiply
   264,018x = 578,701.50 × 578,701.50
4. Step 4: Simplify right side
   264,018x = 334,895,426,102.25
5. Step 5: Solve for x
   x = 334,895,426,102.25/264,018
6. Step 6: Final answer
   x = 1,268,456.79