Finding the Third Proportional to 138,635,264 and 300,388,048

Step by Step Solution

1. Step 1: Write the proportion equation
   138,635,264 : 300,388,048 = 300,388,048 : x
2. Step 2: Convert to fraction form
   138,635,264/300,388,048 = 300,388,048/x
3. Step 3: Cross multiply
   138,635,264x = 300,388,048 × 300,388,048
4. Step 4: Simplify right side
   138,635,264x = 90,232,979,381,250,304
5. Step 5: Solve for x
   x = 90,232,979,381,250,304/138,635,264
6. Step 6: Final answer
   x = 650,865,997.42