Finding the Third Proportional to 196,983 and 286,861.50

Step by Step Solution

1. Step 1: Write the proportion equation
   196,983 : 286,861.50 = 286,861.50 : x
2. Step 2: Convert to fraction form
   196,983/286,861.50 = 286,861.50/x
3. Step 3: Cross multiply
   196,983x = 286,861.50 × 286,861.50
4. Step 4: Simplify right side
   196,983x = 82,289,520,182.25
5. Step 5: Solve for x
   x = 82,289,520,182.25/196,983
6. Step 6: Final answer
   x = 417,749.35