Finding the Third Proportional to 129,433 and 276,861.50

Step by Step Solution

1. Step 1: Write the proportion equation
   129,433 : 276,861.50 = 276,861.50 : x
2. Step 2: Convert to fraction form
   129,433/276,861.50 = 276,861.50/x
3. Step 3: Cross multiply
   129,433x = 276,861.50 × 276,861.50
4. Step 4: Simplify right side
   129,433x = 76,652,290,182.25
5. Step 5: Solve for x
   x = 76,652,290,182.25/129,433
6. Step 6: Final answer
   x = 592,215.97