Finding the Third Proportional to 1,772,442 and 3,899,178

Step by Step Solution

1. Step 1: Write the proportion equation
   1,772,442 : 3,899,178 = 3,899,178 : x
2. Step 2: Convert to fraction form
   1,772,442/3,899,178 = 3,899,178/x
3. Step 3: Cross multiply
   1,772,442x = 3,899,178 × 3,899,178
4. Step 4: Simplify right side
   1,772,442x = 15,203,589,075,684
5. Step 5: Solve for x
   x = 15,203,589,075,684/1,772,442
6. Step 6: Final answer
   x = 8,577,763.94