Finding the Third Proportional to 5,812,278 and 7,978,671

Step by Step Solution

1. Step 1: Write the proportion equation
   5,812,278 : 7,978,671 = 7,978,671 : x
2. Step 2: Convert to fraction form
   5,812,278/7,978,671 = 7,978,671/x
3. Step 3: Cross multiply
   5,812,278x = 7,978,671 × 7,978,671
4. Step 4: Simplify right side
   5,812,278x = 63,659,190,926,241
5. Step 5: Solve for x
   x = 63,659,190,926,241/5,812,278
6. Step 6: Final answer
   x = 10,952,537.19