Finding the Third Proportional to 1,048,302 and 1,678,887

Step by Step Solution

1. Step 1: Write the proportion equation
   1,048,302 : 1,678,887 = 1,678,887 : x
2. Step 2: Convert to fraction form
   1,048,302/1,678,887 = 1,678,887/x
3. Step 3: Cross multiply
   1,048,302x = 1,678,887 × 1,678,887
4. Step 4: Simplify right side
   1,048,302x = 2,818,661,558,769
5. Step 5: Solve for x
   x = 2,818,661,558,769/1,048,302
6. Step 6: Final answer
   x = 2,688,787.73