Finding the Third Proportional to 8,242,290 and 12,116,475

Step by Step Solution

1. Step 1: Write the proportion equation
   8,242,290 : 12,116,475 = 12,116,475 : x
2. Step 2: Convert to fraction form
   8,242,290/12,116,475 = 12,116,475/x
3. Step 3: Cross multiply
   8,242,290x = 12,116,475 × 12,116,475
4. Step 4: Simplify right side
   8,242,290x = 146,808,966,425,625
5. Step 5: Solve for x
   x = 146,808,966,425,625/8,242,290
6. Step 6: Final answer
   x = 17,811,672.05