Finding the Third Proportional to 866,120 and 1,889,632

Step by Step Solution

1. Step 1: Write the proportion equation
   866,120 : 1,889,632 = 1,889,632 : x
2. Step 2: Convert to fraction form
   866,120/1,889,632 = 1,889,632/x
3. Step 3: Cross multiply
   866,120x = 1,889,632 × 1,889,632
4. Step 4: Simplify right side
   866,120x = 3,570,709,095,424
5. Step 5: Solve for x
   x = 3,570,709,095,424/866,120
6. Step 6: Final answer
   x = 4,122,649.40