Finding the Third Proportional to 4,274,242 and 8,722,888

Step by Step Solution

1. Step 1: Write the proportion equation
   4,274,242 : 8,722,888 = 8,722,888 : x
2. Step 2: Convert to fraction form
   4,274,242/8,722,888 = 8,722,888/x
3. Step 3: Cross multiply
   4,274,242x = 8,722,888 × 8,722,888
4. Step 4: Simplify right side
   4,274,242x = 76,088,775,060,544
5. Step 5: Solve for x
   x = 76,088,775,060,544/4,274,242
6. Step 6: Final answer
   x = 17,801,700.29