Finding the Third Proportional to 1,077,688 and 1,690,566

Step by Step Solution

1. Step 1: Write the proportion equation
   1,077,688 : 1,690,566 = 1,690,566 : x
2. Step 2: Convert to fraction form
   1,077,688/1,690,566 = 1,690,566/x
3. Step 3: Cross multiply
   1,077,688x = 1,690,566 × 1,690,566
4. Step 4: Simplify right side
   1,077,688x = 2,858,013,400,356
5. Step 5: Solve for x
   x = 2,858,013,400,356/1,077,688
6. Step 6: Final answer
   x = 2,651,985.92