Finding the Third Proportional to 31,646,424 and 64,970,520

Step by Step Solution

1. Step 1: Write the proportion equation
   31,646,424 : 64,970,520 = 64,970,520 : x
2. Step 2: Convert to fraction form
   31,646,424/64,970,520 = 64,970,520/x
3. Step 3: Cross multiply
   31,646,424x = 64,970,520 × 64,970,520
4. Step 4: Simplify right side
   31,646,424x = 4,221,168,469,070,400
5. Step 5: Solve for x
   x = 4,221,168,469,070,400/31,646,424
6. Step 6: Final answer
   x = 133,385,322.43