Finding the Third Proportional to 420,270 and 928,861.50

Step by Step Solution

1. Step 1: Write the proportion equation
   420,270 : 928,861.50 = 928,861.50 : x
2. Step 2: Convert to fraction form
   420,270/928,861.50 = 928,861.50/x
3. Step 3: Cross multiply
   420,270x = 928,861.50 × 928,861.50
4. Step 4: Simplify right side
   420,270x = 862,783,686,182.25
5. Step 5: Solve for x
   x = 862,783,686,182.25/420,270
6. Step 6: Final answer
   x = 2,052,927.13