Finding the Third Proportional to 518,178 and 1,124,864.50

Step by Step Solution

1. Step 1: Write the proportion equation
   518,178 : 1,124,864.50 = 1,124,864.50 : x
2. Step 2: Convert to fraction form
   518,178/1,124,864.50 = 1,124,864.50/x
3. Step 3: Cross multiply
   518,178x = 1,124,864.50 × 1,124,864.50
4. Step 4: Simplify right side
   518,178x = 1,265,320,143,360.25
5. Step 5: Solve for x
   x = 1,265,320,143,360.25/518,178
6. Step 6: Final answer
   x = 2,441,863.88