Finding the Third Proportional to 8,263,490 and 12,078,111

Step by Step Solution

1. Step 1: Write the proportion equation
   8,263,490 : 12,078,111 = 12,078,111 : x
2. Step 2: Convert to fraction form
   8,263,490/12,078,111 = 12,078,111/x
3. Step 3: Cross multiply
   8,263,490x = 12,078,111 × 12,078,111
4. Step 4: Simplify right side
   8,263,490x = 145,880,765,328,321
5. Step 5: Solve for x
   x = 145,880,765,328,321/8,263,490
6. Step 6: Final answer
   x = 17,653,650.62