Finding the Third Proportional to 29,489,886 and 64,648,503

Step by Step Solution

1. Step 1: Write the proportion equation
   29,489,886 : 64,648,503 = 64,648,503 : x
2. Step 2: Convert to fraction form
   29,489,886/64,648,503 = 64,648,503/x
3. Step 3: Cross multiply
   29,489,886x = 64,648,503 × 64,648,503
4. Step 4: Simplify right side
   29,489,886x = 4,179,428,940,141,009
5. Step 5: Solve for x
   x = 4,179,428,940,141,009/29,489,886
6. Step 6: Final answer
   x = 141,724,147.06