Finding the Third Proportional to 216,070 and 327,086.50

Step by Step Solution

1. Step 1: Write the proportion equation
   216,070 : 327,086.50 = 327,086.50 : x
2. Step 2: Convert to fraction form
   216,070/327,086.50 = 327,086.50/x
3. Step 3: Cross multiply
   216,070x = 327,086.50 × 327,086.50
4. Step 4: Simplify right side
   216,070x = 106,985,578,482.25
5. Step 5: Solve for x
   x = 106,985,578,482.25/216,070
6. Step 6: Final answer
   x = 495,143.14