Finding the Third Proportional to 91,074.38 and 137,884.78

Step by Step Solution

1. Step 1: Write the proportion equation
   91,074.38 : 137,884.78 = 137,884.78 : x
2. Step 2: Convert to fraction form
   91,074.38/137,884.78 = 137,884.78/x
3. Step 3: Cross multiply
   91,074.38x = 137,884.78 × 137,884.78
4. Step 4: Simplify right side
   91,074.38x = 19,012,212,900.36
5. Step 5: Solve for x
   x = 19,012,212,900.36/91,074.38
6. Step 6: Final answer
   x = 208,754.80