Finding the Third Proportional to 7,939,320 and 17,222,920

Step by Step Solution

1. Step 1: Write the proportion equation
   7,939,320 : 17,222,920 = 17,222,920 : x
2. Step 2: Convert to fraction form
   7,939,320/17,222,920 = 17,222,920/x
3. Step 3: Cross multiply
   7,939,320x = 17,222,920 × 17,222,920
4. Step 4: Simplify right side
   7,939,320x = 296,628,973,326,400
5. Step 5: Solve for x
   x = 296,628,973,326,400/7,939,320
6. Step 6: Final answer
   x = 37,362,012.53