Finding the Third Proportional to 112,636 and 243,861

Step by Step Solution

1. Step 1: Write the proportion equation
   112,636 : 243,861 = 243,861 : x
2. Step 2: Convert to fraction form
   112,636/243,861 = 243,861/x
3. Step 3: Cross multiply
   112,636x = 243,861 × 243,861
4. Step 4: Simplify right side
   112,636x = 59,468,187,321
5. Step 5: Solve for x
   x = 59,468,187,321/112,636
6. Step 6: Final answer
   x = 527,967.86