Finding the Third Proportional to 890,128 and 1,922,808

Step by Step Solution

1. Step 1: Write the proportion equation
   890,128 : 1,922,808 = 1,922,808 : x
2. Step 2: Convert to fraction form
   890,128/1,922,808 = 1,922,808/x
3. Step 3: Cross multiply
   890,128x = 1,922,808 × 1,922,808
4. Step 4: Simplify right side
   890,128x = 3,697,190,604,864
5. Step 5: Solve for x
   x = 3,697,190,604,864/890,128
6. Step 6: Final answer
   x = 4,153,549.38