Finding the Third Proportional to 664,728 and 968,026.50

Step by Step Solution

1. Step 1: Write the proportion equation
   664,728 : 968,026.50 = 968,026.50 : x
2. Step 2: Convert to fraction form
   664,728/968,026.50 = 968,026.50/x
3. Step 3: Cross multiply
   664,728x = 968,026.50 × 968,026.50
4. Step 4: Simplify right side
   664,728x = 937,075,304,702.25
5. Step 5: Solve for x
   x = 937,075,304,702.25/664,728
6. Step 6: Final answer
   x = 1,409,712.40