Finding the Third Proportional to 1,178,298 and 1,868,778

Step by Step Solution

1. Step 1: Write the proportion equation
   1,178,298 : 1,868,778 = 1,868,778 : x
2. Step 2: Convert to fraction form
   1,178,298/1,868,778 = 1,868,778/x
3. Step 3: Cross multiply
   1,178,298x = 1,868,778 × 1,868,778
4. Step 4: Simplify right side
   1,178,298x = 3,492,331,213,284
5. Step 5: Solve for x
   x = 3,492,331,213,284/1,178,298
6. Step 6: Final answer
   x = 2,963,877.74