Finding the Third Proportional to 57,117.63 and 123,768.50

Step by Step Solution

1. Step 1: Write the proportion equation
   57,117.63 : 123,768.50 = 123,768.50 : x
2. Step 2: Convert to fraction form
   57,117.63/123,768.50 = 123,768.50/x
3. Step 3: Cross multiply
   57,117.63x = 123,768.50 × 123,768.50
4. Step 4: Simplify right side
   57,117.63x = 15,318,641,592.25
5. Step 5: Solve for x
   x = 15,318,641,592.25/57,117.63
6. Step 6: Final answer
   x = 268,194.65