Finding the Third Proportional to 661,640 and 1,435,302

Step by Step Solution

1. Step 1: Write the proportion equation
   661,640 : 1,435,302 = 1,435,302 : x
2. Step 2: Convert to fraction form
   661,640/1,435,302 = 1,435,302/x
3. Step 3: Cross multiply
   661,640x = 1,435,302 × 1,435,302
4. Step 4: Simplify right side
   661,640x = 2,060,091,831,204
5. Step 5: Solve for x
   x = 2,060,091,831,204/661,640
6. Step 6: Final answer
   x = 3,113,614.40