Finding the Third Proportional to 1,223,355 and 2,878,308

Step by Step Solution

1. Step 1: Write the proportion equation
   1,223,355 : 2,878,308 = 2,878,308 : x
2. Step 2: Convert to fraction form
   1,223,355/2,878,308 = 2,878,308/x
3. Step 3: Cross multiply
   1,223,355x = 2,878,308 × 2,878,308
4. Step 4: Simplify right side
   1,223,355x = 8,284,656,942,864
5. Step 5: Solve for x
   x = 8,284,656,942,864/1,223,355
6. Step 6: Final answer
   x = 6,772,079.19