Finding the Third Proportional to 911,136 and 2,000,820

Step by Step Solution

1. Step 1: Write the proportion equation
   911,136 : 2,000,820 = 2,000,820 : x
2. Step 2: Convert to fraction form
   911,136/2,000,820 = 2,000,820/x
3. Step 3: Cross multiply
   911,136x = 2,000,820 × 2,000,820
4. Step 4: Simplify right side
   911,136x = 4,003,280,672,400
5. Step 5: Solve for x
   x = 4,003,280,672,400/911,136
6. Step 6: Final answer
   x = 4,393,724.62