Finding the Third Proportional to 640,610 and 965,105.50

Step by Step Solution

1. Step 1: Write the proportion equation
   640,610 : 965,105.50 = 965,105.50 : x
2. Step 2: Convert to fraction form
   640,610/965,105.50 = 965,105.50/x
3. Step 3: Cross multiply
   640,610x = 965,105.50 × 965,105.50
4. Step 4: Simplify right side
   640,610x = 931,428,626,130.25
5. Step 5: Solve for x
   x = 931,428,626,130.25/640,610
6. Step 6: Final answer
   x = 1,453,971.41