Finding the Third Proportional to 1,388,250 and 2,815,140

Step by Step Solution

1. Step 1: Write the proportion equation
   1,388,250 : 2,815,140 = 2,815,140 : x
2. Step 2: Convert to fraction form
   1,388,250/2,815,140 = 2,815,140/x
3. Step 3: Cross multiply
   1,388,250x = 2,815,140 × 2,815,140
4. Step 4: Simplify right side
   1,388,250x = 7,925,013,219,600
5. Step 5: Solve for x
   x = 7,925,013,219,600/1,388,250
6. Step 6: Final answer
   x = 5,708,635.49