Finding the Third Proportional to 747,658 and 1,640,068

Step by Step Solution

1. Step 1: Write the proportion equation
   747,658 : 1,640,068 = 1,640,068 : x
2. Step 2: Convert to fraction form
   747,658/1,640,068 = 1,640,068/x
3. Step 3: Cross multiply
   747,658x = 1,640,068 × 1,640,068
4. Step 4: Simplify right side
   747,658x = 2,689,823,044,624
5. Step 5: Solve for x
   x = 2,689,823,044,624/747,658
6. Step 6: Final answer
   x = 3,597,665.03