Finding the Third Proportional to 89,158.50 and 194,310

Step by Step Solution

1. Step 1: Write the proportion equation
   89,158.50 : 194,310 = 194,310 : x
2. Step 2: Convert to fraction form
   89,158.50/194,310 = 194,310/x
3. Step 3: Cross multiply
   89,158.50x = 194,310 × 194,310
4. Step 4: Simplify right side
   89,158.50x = 37,756,376,100
5. Step 5: Solve for x
   x = 37,756,376,100/89,158.50
6. Step 6: Final answer
   x = 423,474.78