Finding the Third Proportional to 5,812,276 and 7,978,668

Step by Step Solution

1. Step 1: Write the proportion equation
   5,812,276 : 7,978,668 = 7,978,668 : x
2. Step 2: Convert to fraction form
   5,812,276/7,978,668 = 7,978,668/x
3. Step 3: Cross multiply
   5,812,276x = 7,978,668 × 7,978,668
4. Step 4: Simplify right side
   5,812,276x = 63,659,143,054,224
5. Step 5: Solve for x
   x = 63,659,143,054,224/5,812,276
6. Step 6: Final answer
   x = 10,952,532.72