Finding the Third Proportional to 7,944,586.31 and 12,276,253.69

Step by Step Solution

1. Step 1: Write the proportion equation
   7,944,586.31 : 12,276,253.69 = 12,276,253.69 : x
2. Step 2: Convert to fraction form
   7,944,586.31/12,276,253.69 = 12,276,253.69/x
3. Step 3: Cross multiply
   7,944,586.31x = 12,276,253.69 × 12,276,253.69
4. Step 4: Simplify right side
   7,944,586.31x = 150,706,404,599,857.34
5. Step 5: Solve for x
   x = 150,706,404,599,857.34/7,944,586.31
6. Step 6: Final answer
   x = 18,969,698.19