Finding the Third Proportional to 7,287,306 and 10,890,789

Step by Step Solution

1. Step 1: Write the proportion equation
   7,287,306 : 10,890,789 = 10,890,789 : x
2. Step 2: Convert to fraction form
   7,287,306/10,890,789 = 10,890,789/x
3. Step 3: Cross multiply
   7,287,306x = 10,890,789 × 10,890,789
4. Step 4: Simplify right side
   7,287,306x = 118,609,285,042,521
5. Step 5: Solve for x
   x = 118,609,285,042,521/7,287,306
6. Step 6: Final answer
   x = 16,276,149.93