Finding the Third Proportional to 91,942.59 and 140,588.16

Step by Step Solution

1. Step 1: Write the proportion equation
   91,942.59 : 140,588.16 = 140,588.16 : x
2. Step 2: Convert to fraction form
   91,942.59/140,588.16 = 140,588.16/x
3. Step 3: Cross multiply
   91,942.59x = 140,588.16 × 140,588.16
4. Step 4: Simplify right side
   91,942.59x = 19,765,029,677.77
5. Step 5: Solve for x
   x = 19,765,029,677.77/91,942.59
6. Step 6: Final answer
   x = 214,971.42