Finding the Third Proportional to 636,966 and 977,563.50

Step by Step Solution

1. Step 1: Write the proportion equation
   636,966 : 977,563.50 = 977,563.50 : x
2. Step 2: Convert to fraction form
   636,966/977,563.50 = 977,563.50/x
3. Step 3: Cross multiply
   636,966x = 977,563.50 × 977,563.50
4. Step 4: Simplify right side
   636,966x = 955,630,396,532.25
5. Step 5: Solve for x
   x = 955,630,396,532.25/636,966
6. Step 6: Final answer
   x = 1,500,284.78