Finding the Third Proportional to 64,005,008 and 138,018,016

Step by Step Solution

1. Step 1: Write the proportion equation
   64,005,008 : 138,018,016 = 138,018,016 : x
2. Step 2: Convert to fraction form
   64,005,008/138,018,016 = 138,018,016/x
3. Step 3: Cross multiply
   64,005,008x = 138,018,016 × 138,018,016
4. Step 4: Simplify right side
   64,005,008x = 19,048,972,740,576,256
5. Step 5: Solve for x
   x = 19,048,972,740,576,256/64,005,008
6. Step 6: Final answer
   x = 297,616,910.55