Finding the Third Proportional to 866,124 and 1,889,640

Step by Step Solution

1. Step 1: Write the proportion equation
   866,124 : 1,889,640 = 1,889,640 : x
2. Step 2: Convert to fraction form
   866,124/1,889,640 = 1,889,640/x
3. Step 3: Cross multiply
   866,124x = 1,889,640 × 1,889,640
4. Step 4: Simplify right side
   866,124x = 3,570,739,329,600
5. Step 5: Solve for x
   x = 3,570,739,329,600/866,124
6. Step 6: Final answer
   x = 4,122,665.26