Finding the Third Proportional to 1,691,686 and 2,623,432

Step by Step Solution

1. Step 1: Write the proportion equation
   1,691,686 : 2,623,432 = 2,623,432 : x
2. Step 2: Convert to fraction form
   1,691,686/2,623,432 = 2,623,432/x
3. Step 3: Cross multiply
   1,691,686x = 2,623,432 × 2,623,432
4. Step 4: Simplify right side
   1,691,686x = 6,882,395,458,624
5. Step 5: Solve for x
   x = 6,882,395,458,624/1,691,686
6. Step 6: Final answer
   x = 4,068,364.61