Finding the Third Proportional to 29,892,048 and 64,368,648

Step by Step Solution

1. Step 1: Write the proportion equation
   29,892,048 : 64,368,648 = 64,368,648 : x
2. Step 2: Convert to fraction form
   29,892,048/64,368,648 = 64,368,648/x
3. Step 3: Cross multiply
   29,892,048x = 64,368,648 × 64,368,648
4. Step 4: Simplify right side
   29,892,048x = 4,143,322,845,347,904
5. Step 5: Solve for x
   x = 4,143,322,845,347,904/29,892,048
6. Step 6: Final answer
   x = 138,609,534.06