Finding the Third Proportional to 380,492 and 899,830

Step by Step Solution

1. Step 1: Write the proportion equation
   380,492 : 899,830 = 899,830 : x
2. Step 2: Convert to fraction form
   380,492/899,830 = 899,830/x
3. Step 3: Cross multiply
   380,492x = 899,830 × 899,830
4. Step 4: Simplify right side
   380,492x = 809,694,028,900
5. Step 5: Solve for x
   x = 809,694,028,900/380,492
6. Step 6: Final answer
   x = 2,128,018.54