Finding the Third Proportional to 8,189,630 and 12,845,940

Step by Step Solution

1. Step 1: Write the proportion equation
   8,189,630 : 12,845,940 = 12,845,940 : x
2. Step 2: Convert to fraction form
   8,189,630/12,845,940 = 12,845,940/x
3. Step 3: Cross multiply
   8,189,630x = 12,845,940 × 12,845,940
4. Step 4: Simplify right side
   8,189,630x = 165,018,174,483,600
5. Step 5: Solve for x
   x = 165,018,174,483,600/8,189,630
6. Step 6: Final answer
   x = 20,149,649.55