Finding the Third Proportional to 1,638,522 and 2,507,679

Step by Step Solution

1. Step 1: Write the proportion equation
   1,638,522 : 2,507,679 = 2,507,679 : x
2. Step 2: Convert to fraction form
   1,638,522/2,507,679 = 2,507,679/x
3. Step 3: Cross multiply
   1,638,522x = 2,507,679 × 2,507,679
4. Step 4: Simplify right side
   1,638,522x = 6,288,453,967,041
5. Step 5: Solve for x
   x = 6,288,453,967,041/1,638,522
6. Step 6: Final answer
   x = 3,837,881.92