Finding the Third Proportional to 669,699 and 957,289.50

Step by Step Solution

1. Step 1: Write the proportion equation
   669,699 : 957,289.50 = 957,289.50 : x
2. Step 2: Convert to fraction form
   669,699/957,289.50 = 957,289.50/x
3. Step 3: Cross multiply
   669,699x = 957,289.50 × 957,289.50
4. Step 4: Simplify right side
   669,699x = 916,403,186,810.25
5. Step 5: Solve for x
   x = 916,403,186,810.25/669,699
6. Step 6: Final answer
   x = 1,368,380.70