Finding the Third Proportional to 5,812,290 and 7,978,683

Step by Step Solution

1. Step 1: Write the proportion equation
   5,812,290 : 7,978,683 = 7,978,683 : x
2. Step 2: Convert to fraction form
   5,812,290/7,978,683 = 7,978,683/x
3. Step 3: Cross multiply
   5,812,290x = 7,978,683 × 7,978,683
4. Step 4: Simplify right side
   5,812,290x = 63,659,382,414,489
5. Step 5: Solve for x
   x = 63,659,382,414,489/5,812,290
6. Step 6: Final answer
   x = 10,952,547.52