Finding the Third Proportional to 1,531,131 and 3,219,000

Step by Step Solution

1. Step 1: Write the proportion equation
   1,531,131 : 3,219,000 = 3,219,000 : x
2. Step 2: Convert to fraction form
   1,531,131/3,219,000 = 3,219,000/x
3. Step 3: Cross multiply
   1,531,131x = 3,219,000 × 3,219,000
4. Step 4: Simplify right side
   1,531,131x = 10,361,961,000,000
5. Step 5: Solve for x
   x = 10,361,961,000,000/1,531,131
6. Step 6: Final answer
   x = 6,767,520.87