Finding the Third Proportional to 127,899.38 and 213,152.25

Step by Step Solution

1. Step 1: Write the proportion equation
   127,899.38 : 213,152.25 = 213,152.25 : x
2. Step 2: Convert to fraction form
   127,899.38/213,152.25 = 213,152.25/x
3. Step 3: Cross multiply
   127,899.38x = 213,152.25 × 213,152.25
4. Step 4: Simplify right side
   127,899.38x = 45,433,881,680.06
5. Step 5: Solve for x
   x = 45,433,881,680.06/127,899.38
6. Step 6: Final answer
   x = 355,231.46