Finding the Third Proportional to 113,858 and 243,480.50

Step by Step Solution

1. Step 1: Write the proportion equation
   113,858 : 243,480.50 = 243,480.50 : x
2. Step 2: Convert to fraction form
   113,858/243,480.50 = 243,480.50/x
3. Step 3: Cross multiply
   113,858x = 243,480.50 × 243,480.50
4. Step 4: Simplify right side
   113,858x = 59,282,753,880.25
5. Step 5: Solve for x
   x = 59,282,753,880.25/113,858
6. Step 6: Final answer
   x = 520,672.71