Finding the Third Proportional to 143,047,644 and 308,963,648

Step by Step Solution

1. Step 1: Write the proportion equation
   143,047,644 : 308,963,648 = 308,963,648 : x
2. Step 2: Convert to fraction form
   143,047,644/308,963,648 = 308,963,648/x
3. Step 3: Cross multiply
   143,047,644x = 308,963,648 × 308,963,648
4. Step 4: Simplify right side
   143,047,644x = 95,458,535,785,467,904
5. Step 5: Solve for x
   x = 95,458,535,785,467,904/143,047,644
6. Step 6: Final answer
   x = 667,319,874.11