Finding the Third Proportional to 486,648 and 650,956.50

Step by Step Solution

1. Step 1: Write the proportion equation
   486,648 : 650,956.50 = 650,956.50 : x
2. Step 2: Convert to fraction form
   486,648/650,956.50 = 650,956.50/x
3. Step 3: Cross multiply
   486,648x = 650,956.50 × 650,956.50
4. Step 4: Simplify right side
   486,648x = 423,744,364,892.25
5. Step 5: Solve for x
   x = 423,744,364,892.25/486,648
6. Step 6: Final answer
   x = 870,741.00