Finding the Third Proportional to 55,434.50 and 121,591.50

Step by Step Solution

1. Step 1: Write the proportion equation
   55,434.50 : 121,591.50 = 121,591.50 : x
2. Step 2: Convert to fraction form
   55,434.50/121,591.50 = 121,591.50/x
3. Step 3: Cross multiply
   55,434.50x = 121,591.50 × 121,591.50
4. Step 4: Simplify right side
   55,434.50x = 14,784,492,872.25
5. Step 5: Solve for x
   x = 14,784,492,872.25/55,434.50
6. Step 6: Final answer
   x = 266,702.02