Finding the Third Proportional to 190,533.50 and 402,451

Step by Step Solution

1. Step 1: Write the proportion equation
   190,533.50 : 402,451 = 402,451 : x
2. Step 2: Convert to fraction form
   190,533.50/402,451 = 402,451/x
3. Step 3: Cross multiply
   190,533.50x = 402,451 × 402,451
4. Step 4: Simplify right side
   190,533.50x = 161,966,807,401
5. Step 5: Solve for x
   x = 161,966,807,401/190,533.50
6. Step 6: Final answer
   x = 850,069.97