Finding the Third Proportional to 12,290,964 and 17,705,628

Step by Step Solution

1. Step 1: Write the proportion equation
   12,290,964 : 17,705,628 = 17,705,628 : x
2. Step 2: Convert to fraction form
   12,290,964/17,705,628 = 17,705,628/x
3. Step 3: Cross multiply
   12,290,964x = 17,705,628 × 17,705,628
4. Step 4: Simplify right side
   12,290,964x = 313,489,262,874,384
5. Step 5: Solve for x
   x = 313,489,262,874,384/12,290,964
6. Step 6: Final answer
   x = 25,505,669.28