Finding the Third Proportional to 903,812 and 1,988,200

Step by Step Solution

1. Step 1: Write the proportion equation
   903,812 : 1,988,200 = 1,988,200 : x
2. Step 2: Convert to fraction form
   903,812/1,988,200 = 1,988,200/x
3. Step 3: Cross multiply
   903,812x = 1,988,200 × 1,988,200
4. Step 4: Simplify right side
   903,812x = 3,952,939,240,000
5. Step 5: Solve for x
   x = 3,952,939,240,000/903,812
6. Step 6: Final answer
   x = 4,373,629.96