Finding the Third Proportional to 2,194,659 and 5,286,607

Step by Step Solution

1. Step 1: Write the proportion equation
   2,194,659 : 5,286,607 = 5,286,607 : x
2. Step 2: Convert to fraction form
   2,194,659/5,286,607 = 5,286,607/x
3. Step 3: Cross multiply
   2,194,659x = 5,286,607 × 5,286,607
4. Step 4: Simplify right side
   2,194,659x = 27,948,213,572,449
5. Step 5: Solve for x
   x = 27,948,213,572,449/2,194,659
6. Step 6: Final answer
   x = 12,734,649.70