Finding the Third Proportional to 90,199.50 and 194,700

Step by Step Solution

1. Step 1: Write the proportion equation
   90,199.50 : 194,700 = 194,700 : x
2. Step 2: Convert to fraction form
   90,199.50/194,700 = 194,700/x
3. Step 3: Cross multiply
   90,199.50x = 194,700 × 194,700
4. Step 4: Simplify right side
   90,199.50x = 37,908,090,000
5. Step 5: Solve for x
   x = 37,908,090,000/90,199.50
6. Step 6: Final answer
   x = 420,269.40