Finding the Third Proportional to 1,314,468 and 2,116,278

Step by Step Solution

1. Step 1: Write the proportion equation
   1,314,468 : 2,116,278 = 2,116,278 : x
2. Step 2: Convert to fraction form
   1,314,468/2,116,278 = 2,116,278/x
3. Step 3: Cross multiply
   1,314,468x = 2,116,278 × 2,116,278
4. Step 4: Simplify right side
   1,314,468x = 4,478,632,573,284
5. Step 5: Solve for x
   x = 4,478,632,573,284/1,314,468
6. Step 6: Final answer
   x = 3,407,182.66