Finding the Third Proportional to 10,078,586 and 21,836,788

Step by Step Solution

1. Step 1: Write the proportion equation
   10,078,586 : 21,836,788 = 21,836,788 : x
2. Step 2: Convert to fraction form
   10,078,586/21,836,788 = 21,836,788/x
3. Step 3: Cross multiply
   10,078,586x = 21,836,788 × 21,836,788
4. Step 4: Simplify right side
   10,078,586x = 476,845,310,156,944
5. Step 5: Solve for x
   x = 476,845,310,156,944/10,078,586
6. Step 6: Final answer
   x = 47,312,719.28