Finding the Third Proportional to 911,124 and 1,821,168

Step by Step Solution

1. Step 1: Write the proportion equation
   911,124 : 1,821,168 = 1,821,168 : x
2. Step 2: Convert to fraction form
   911,124/1,821,168 = 1,821,168/x
3. Step 3: Cross multiply
   911,124x = 1,821,168 × 1,821,168
4. Step 4: Simplify right side
   911,124x = 3,316,652,884,224
5. Step 5: Solve for x
   x = 3,316,652,884,224/911,124
6. Step 6: Final answer
   x = 3,640,177.28