Finding the Third Proportional to 113,866 and 243,497.50

Step by Step Solution

1. Step 1: Write the proportion equation
   113,866 : 243,497.50 = 243,497.50 : x
2. Step 2: Convert to fraction form
   113,866/243,497.50 = 243,497.50/x
3. Step 3: Cross multiply
   113,866x = 243,497.50 × 243,497.50
4. Step 4: Simplify right side
   113,866x = 59,291,032,506.25
5. Step 5: Solve for x
   x = 59,291,032,506.25/113,866
6. Step 6: Final answer
   x = 520,708.84