Finding the Third Proportional to 138,635,368 and 300,388,256

Step by Step Solution

1. Step 1: Write the proportion equation
   138,635,368 : 300,388,256 = 300,388,256 : x
2. Step 2: Convert to fraction form
   138,635,368/300,388,256 = 300,388,256/x
3. Step 3: Cross multiply
   138,635,368x = 300,388,256 × 300,388,256
4. Step 4: Simplify right side
   138,635,368x = 90,233,104,342,721,536
5. Step 5: Solve for x
   x = 90,233,104,342,721,536/138,635,368
6. Step 6: Final answer
   x = 650,866,410.53