Finding the Third Proportional to 518,456 and 1,078,297

Step by Step Solution

1. Step 1: Write the proportion equation
   518,456 : 1,078,297 = 1,078,297 : x
2. Step 2: Convert to fraction form
   518,456/1,078,297 = 1,078,297/x
3. Step 3: Cross multiply
   518,456x = 1,078,297 × 1,078,297
4. Step 4: Simplify right side
   518,456x = 1,162,724,420,209
5. Step 5: Solve for x
   x = 1,162,724,420,209/518,456
6. Step 6: Final answer
   x = 2,242,667.50