Finding the Third Proportional to 64,466,967 and 139,143,162

Step by Step Solution

1. Step 1: Write the proportion equation
   64,466,967 : 139,143,162 = 139,143,162 : x
2. Step 2: Convert to fraction form
   64,466,967/139,143,162 = 139,143,162/x
3. Step 3: Cross multiply
   64,466,967x = 139,143,162 × 139,143,162
4. Step 4: Simplify right side
   64,466,967x = 19,360,819,531,358,244
5. Step 5: Solve for x
   x = 19,360,819,531,358,244/64,466,967
6. Step 6: Final answer
   x = 300,321,551.21