Finding the Third Proportional to 1,287,074 and 1,692,507

Step by Step Solution

1. Step 1: Write the proportion equation
   1,287,074 : 1,692,507 = 1,692,507 : x
2. Step 2: Convert to fraction form
   1,287,074/1,692,507 = 1,692,507/x
3. Step 3: Cross multiply
   1,287,074x = 1,692,507 × 1,692,507
4. Step 4: Simplify right side
   1,287,074x = 2,864,579,945,049
5. Step 5: Solve for x
   x = 2,864,579,945,049/1,287,074
6. Step 6: Final answer
   x = 2,225,652.87