Finding the Third Proportional to 64,649,119 and 143,647,144

Step by Step Solution

1. Step 1: Write the proportion equation
   64,649,119 : 143,647,144 = 143,647,144 : x
2. Step 2: Convert to fraction form
   64,649,119/143,647,144 = 143,647,144/x
3. Step 3: Cross multiply
   64,649,119x = 143,647,144 × 143,647,144
4. Step 4: Simplify right side
   64,649,119x = 20,634,501,979,356,736
5. Step 5: Solve for x
   x = 20,634,501,979,356,736/64,649,119
6. Step 6: Final answer
   x = 319,176,847.24