Finding the Third Proportional to 8,466,322 and 12,778,842

Step by Step Solution

1. Step 1: Write the proportion equation
   8,466,322 : 12,778,842 = 12,778,842 : x
2. Step 2: Convert to fraction form
   8,466,322/12,778,842 = 12,778,842/x
3. Step 3: Cross multiply
   8,466,322x = 12,778,842 × 12,778,842
4. Step 4: Simplify right side
   8,466,322x = 163,298,802,860,964
5. Step 5: Solve for x
   x = 163,298,802,860,964/8,466,322
6. Step 6: Final answer
   x = 19,288,045.37