Finding the Third Proportional to 4,293,894 and 8,774,220

Step by Step Solution

1. Step 1: Write the proportion equation
   4,293,894 : 8,774,220 = 8,774,220 : x
2. Step 2: Convert to fraction form
   4,293,894/8,774,220 = 8,774,220/x
3. Step 3: Cross multiply
   4,293,894x = 8,774,220 × 8,774,220
4. Step 4: Simplify right side
   4,293,894x = 76,986,936,608,400
5. Step 5: Solve for x
   x = 76,986,936,608,400/4,293,894
6. Step 6: Final answer
   x = 17,929,398.49