Finding the Third Proportional to 31,646,436 and 64,970,544

Step by Step Solution

1. Step 1: Write the proportion equation
   31,646,436 : 64,970,544 = 64,970,544 : x
2. Step 2: Convert to fraction form
   31,646,436/64,970,544 = 64,970,544/x
3. Step 3: Cross multiply
   31,646,436x = 64,970,544 × 64,970,544
4. Step 4: Simplify right side
   31,646,436x = 4,221,171,587,655,936
5. Step 5: Solve for x
   x = 4,221,171,587,655,936/31,646,436
6. Step 6: Final answer
   x = 133,385,370.40