Finding the Third Proportional to 112,439 and 243,561.50

Step by Step Solution

1. Step 1: Write the proportion equation
   112,439 : 243,561.50 = 243,561.50 : x
2. Step 2: Convert to fraction form
   112,439/243,561.50 = 243,561.50/x
3. Step 3: Cross multiply
   112,439x = 243,561.50 × 243,561.50
4. Step 4: Simplify right side
   112,439x = 59,322,204,282.25
5. Step 5: Solve for x
   x = 59,322,204,282.25/112,439
6. Step 6: Final answer
   x = 527,594.56