Finding the Third Proportional to 518,461 and 1,078,308

Step by Step Solution

1. Step 1: Write the proportion equation
   518,461 : 1,078,308 = 1,078,308 : x
2. Step 2: Convert to fraction form
   518,461/1,078,308 = 1,078,308/x
3. Step 3: Cross multiply
   518,461x = 1,078,308 × 1,078,308
4. Step 4: Simplify right side
   518,461x = 1,162,748,142,864
5. Step 5: Solve for x
   x = 1,162,748,142,864/518,461
6. Step 6: Final answer
   x = 2,242,691.63