Finding the Third Proportional to 1,076,864 and 1,689,516

Step by Step Solution

1. Step 1: Write the proportion equation
   1,076,864 : 1,689,516 = 1,689,516 : x
2. Step 2: Convert to fraction form
   1,076,864/1,689,516 = 1,689,516/x
3. Step 3: Cross multiply
   1,076,864x = 1,689,516 × 1,689,516
4. Step 4: Simplify right side
   1,076,864x = 2,854,464,314,256
5. Step 5: Solve for x
   x = 2,854,464,314,256/1,076,864
6. Step 6: Final answer
   x = 2,650,719.42