Finding the Third Proportional to 1,687,436 and 3,640,060

Step by Step Solution

1. Step 1: Write the proportion equation
   1,687,436 : 3,640,060 = 3,640,060 : x
2. Step 2: Convert to fraction form
   1,687,436/3,640,060 = 3,640,060/x
3. Step 3: Cross multiply
   1,687,436x = 3,640,060 × 3,640,060
4. Step 4: Simplify right side
   1,687,436x = 13,250,036,803,600
5. Step 5: Solve for x
   x = 13,250,036,803,600/1,687,436
6. Step 6: Final answer
   x = 7,852,171.46