Finding the Third Proportional to 527,769 and 817,558.50

Step by Step Solution

1. Step 1: Write the proportion equation
   527,769 : 817,558.50 = 817,558.50 : x
2. Step 2: Convert to fraction form
   527,769/817,558.50 = 817,558.50/x
3. Step 3: Cross multiply
   527,769x = 817,558.50 × 817,558.50
4. Step 4: Simplify right side
   527,769x = 668,401,900,922.25
5. Step 5: Solve for x
   x = 668,401,900,922.25/527,769
6. Step 6: Final answer
   x = 1,266,466.77