Finding the Third Proportional to 91,081.13 and 137,892.38

Step by Step Solution

1. Step 1: Write the proportion equation
   91,081.13 : 137,892.38 = 137,892.38 : x
2. Step 2: Convert to fraction form
   91,081.13/137,892.38 = 137,892.38/x
3. Step 3: Cross multiply
   91,081.13x = 137,892.38 × 137,892.38
4. Step 4: Simplify right side
   91,081.13x = 19,014,307,083.14
5. Step 5: Solve for x
   x = 19,014,307,083.14/91,081.13
6. Step 6: Final answer
   x = 208,762.32