Finding the Third Proportional to 91,387.50 and 220,158

Step by Step Solution

1. Step 1: Write the proportion equation
   91,387.50 : 220,158 = 220,158 : x
2. Step 2: Convert to fraction form
   91,387.50/220,158 = 220,158/x
3. Step 3: Cross multiply
   91,387.50x = 220,158 × 220,158
4. Step 4: Simplify right side
   91,387.50x = 48,469,544,964
5. Step 5: Solve for x
   x = 48,469,544,964/91,387.50
6. Step 6: Final answer
   x = 530,373.90