Finding the Third Proportional to 53,900 and 113,385

Step by Step Solution

1. Step 1: Write the proportion equation
   53,900 : 113,385 = 113,385 : x
2. Step 2: Convert to fraction form
   53,900/113,385 = 113,385/x
3. Step 3: Cross multiply
   53,900x = 113,385 × 113,385
4. Step 4: Simplify right side
   53,900x = 12,856,158,225
5. Step 5: Solve for x
   x = 12,856,158,225/53,900
6. Step 6: Final answer
   x = 238,518.71