Finding the Third Proportional to 4,558,340 and 9,726,856

Step by Step Solution

1. Step 1: Write the proportion equation
   4,558,340 : 9,726,856 = 9,726,856 : x
2. Step 2: Convert to fraction form
   4,558,340/9,726,856 = 9,726,856/x
3. Step 3: Cross multiply
   4,558,340x = 9,726,856 × 9,726,856
4. Step 4: Simplify right side
   4,558,340x = 94,611,727,644,736
5. Step 5: Solve for x
   x = 94,611,727,644,736/4,558,340
6. Step 6: Final answer
   x = 20,755,741.71