Finding the Third Proportional to 112,637 and 243,863

Step by Step Solution

1. Step 1: Write the proportion equation
   112,637 : 243,863 = 243,863 : x
2. Step 2: Convert to fraction form
   112,637/243,863 = 243,863/x
3. Step 3: Cross multiply
   112,637x = 243,863 × 243,863
4. Step 4: Simplify right side
   112,637x = 59,469,162,769
5. Step 5: Solve for x
   x = 59,469,162,769/112,637
6. Step 6: Final answer
   x = 527,971.83