Finding the Third Proportional to 662,664 and 1,431,116

Step by Step Solution

1. Step 1: Write the proportion equation
   662,664 : 1,431,116 = 1,431,116 : x
2. Step 2: Convert to fraction form
   662,664/1,431,116 = 1,431,116/x
3. Step 3: Cross multiply
   662,664x = 1,431,116 × 1,431,116
4. Step 4: Simplify right side
   662,664x = 2,048,093,005,456
5. Step 5: Solve for x
   x = 2,048,093,005,456/662,664
6. Step 6: Final answer
   x = 3,090,696.05