Finding the Third Proportional to 1,287,740 and 2,543,050

Step by Step Solution

1. Step 1: Write the proportion equation
   1,287,740 : 2,543,050 = 2,543,050 : x
2. Step 2: Convert to fraction form
   1,287,740/2,543,050 = 2,543,050/x
3. Step 3: Cross multiply
   1,287,740x = 2,543,050 × 2,543,050
4. Step 4: Simplify right side
   1,287,740x = 6,467,103,302,500
5. Step 5: Solve for x
   x = 6,467,103,302,500/1,287,740
6. Step 6: Final answer
   x = 5,022,056.71