Finding the Third Proportional to 91,118.25 and 200,164.50

Step by Step Solution

1. Step 1: Write the proportion equation
   91,118.25 : 200,164.50 = 200,164.50 : x
2. Step 2: Convert to fraction form
   91,118.25/200,164.50 = 200,164.50/x
3. Step 3: Cross multiply
   91,118.25x = 200,164.50 × 200,164.50
4. Step 4: Simplify right side
   91,118.25x = 40,065,827,060.25
5. Step 5: Solve for x
   x = 40,065,827,060.25/91,118.25
6. Step 6: Final answer
   x = 439,712.43