Finding the Third Proportional to 817,155 and 964,777.50

Step by Step Solution

1. Step 1: Write the proportion equation
   817,155 : 964,777.50 = 964,777.50 : x
2. Step 2: Convert to fraction form
   817,155/964,777.50 = 964,777.50/x
3. Step 3: Cross multiply
   817,155x = 964,777.50 × 964,777.50
4. Step 4: Simplify right side
   817,155x = 930,795,624,506.25
5. Step 5: Solve for x
   x = 930,795,624,506.25/817,155
6. Step 6: Final answer
   x = 1,139,068.63