Finding the Third Proportional to 64,982,647 and 142,718,014

Step by Step Solution

1. Step 1: Write the proportion equation
   64,982,647 : 142,718,014 = 142,718,014 : x
2. Step 2: Convert to fraction form
   64,982,647/142,718,014 = 142,718,014/x
3. Step 3: Cross multiply
   64,982,647x = 142,718,014 × 142,718,014
4. Step 4: Simplify right side
   64,982,647x = 20,368,431,520,104,196
5. Step 5: Solve for x
   x = 20,368,431,520,104,196/64,982,647
6. Step 6: Final answer
   x = 313,444,164.87