Finding the Third Proportional to 91,275 and 140,236.50

Step by Step Solution

1. Step 1: Write the proportion equation
   91,275 : 140,236.50 = 140,236.50 : x
2. Step 2: Convert to fraction form
   91,275/140,236.50 = 140,236.50/x
3. Step 3: Cross multiply
   91,275x = 140,236.50 × 140,236.50
4. Step 4: Simplify right side
   91,275x = 19,666,275,932.25
5. Step 5: Solve for x
   x = 19,666,275,932.25/91,275
6. Step 6: Final answer
   x = 215,461.80