Finding the Third Proportional to 91,858.50 and 200,119.50

Step by Step Solution

1. Step 1: Write the proportion equation
   91,858.50 : 200,119.50 = 200,119.50 : x
2. Step 2: Convert to fraction form
   91,858.50/200,119.50 = 200,119.50/x
3. Step 3: Cross multiply
   91,858.50x = 200,119.50 × 200,119.50
4. Step 4: Simplify right side
   91,858.50x = 40,047,814,280.25
5. Step 5: Solve for x
   x = 40,047,814,280.25/91,858.50
6. Step 6: Final answer
   x = 435,972.87