Finding the Third Proportional to 194,158.50 and 415,311

Step by Step Solution

1. Step 1: Write the proportion equation
   194,158.50 : 415,311 = 415,311 : x
2. Step 2: Convert to fraction form
   194,158.50/415,311 = 415,311/x
3. Step 3: Cross multiply
   194,158.50x = 415,311 × 415,311
4. Step 4: Simplify right side
   194,158.50x = 172,483,226,721
5. Step 5: Solve for x
   x = 172,483,226,721/194,158.50
6. Step 6: Final answer
   x = 888,363.00