Finding the Third Proportional to 1,298,718 and 1,769,229

Step by Step Solution

1. Step 1: Write the proportion equation
   1,298,718 : 1,769,229 = 1,769,229 : x
2. Step 2: Convert to fraction form
   1,298,718/1,769,229 = 1,769,229/x
3. Step 3: Cross multiply
   1,298,718x = 1,769,229 × 1,769,229
4. Step 4: Simplify right side
   1,298,718x = 3,130,171,254,441
5. Step 5: Solve for x
   x = 3,130,171,254,441/1,298,718
6. Step 6: Final answer
   x = 2,410,200.87