Finding the Third Proportional to 903,136 and 1,990,574

Step by Step Solution

1. Step 1: Write the proportion equation
   903,136 : 1,990,574 = 1,990,574 : x
2. Step 2: Convert to fraction form
   903,136/1,990,574 = 1,990,574/x
3. Step 3: Cross multiply
   903,136x = 1,990,574 × 1,990,574
4. Step 4: Simplify right side
   903,136x = 3,962,384,849,476
5. Step 5: Solve for x
   x = 3,962,384,849,476/903,136
6. Step 6: Final answer
   x = 4,387,362.31