Finding the Third Proportional to 91,054.13 and 137,188.69

Step by Step Solution

1. Step 1: Write the proportion equation
   91,054.13 : 137,188.69 = 137,188.69 : x
2. Step 2: Convert to fraction form
   91,054.13/137,188.69 = 137,188.69/x
3. Step 3: Cross multiply
   91,054.13x = 137,188.69 × 137,188.69
4. Step 4: Simplify right side
   91,054.13x = 18,820,735,977.97
5. Step 5: Solve for x
   x = 18,820,735,977.97/91,054.13
6. Step 6: Final answer
   x = 206,698.33