Finding the Third Proportional to 38,971.13 and 55,731.38

Step by Step Solution

1. Step 1: Write the proportion equation
   38,971.13 : 55,731.38 = 55,731.38 : x
2. Step 2: Convert to fraction form
   38,971.13/55,731.38 = 55,731.38/x
3. Step 3: Cross multiply
   38,971.13x = 55,731.38 × 55,731.38
4. Step 4: Simplify right side
   38,971.13x = 3,105,986,159.39
5. Step 5: Solve for x
   x = 3,105,986,159.39/38,971.13
6. Step 6: Final answer
   x = 79,699.68