Finding the Third Proportional to 7,518,312 and 12,105,628

Step by Step Solution

1. Step 1: Write the proportion equation
   7,518,312 : 12,105,628 = 12,105,628 : x
2. Step 2: Convert to fraction form
   7,518,312/12,105,628 = 12,105,628/x
3. Step 3: Cross multiply
   7,518,312x = 12,105,628 × 12,105,628
4. Step 4: Simplify right side
   7,518,312x = 146,546,229,274,384
5. Step 5: Solve for x
   x = 146,546,229,274,384/7,518,312
6. Step 6: Final answer
   x = 19,491,905.80