Finding the Third Proportional to 903,140 and 1,990,582

Step by Step Solution

1. Step 1: Write the proportion equation
   903,140 : 1,990,582 = 1,990,582 : x
2. Step 2: Convert to fraction form
   903,140/1,990,582 = 1,990,582/x
3. Step 3: Cross multiply
   903,140x = 1,990,582 × 1,990,582
4. Step 4: Simplify right side
   903,140x = 3,962,416,698,724
5. Step 5: Solve for x
   x = 3,962,416,698,724/903,140
6. Step 6: Final answer
   x = 4,387,378.15