Finding the Third Proportional to 7,867,128.38 and 12,150,065.81

Step by Step Solution

1. Step 1: Write the proportion equation
   7,867,128.38 : 12,150,065.81 = 12,150,065.81 : x
2. Step 2: Convert to fraction form
   7,867,128.38/12,150,065.81 = 12,150,065.81/x
3. Step 3: Cross multiply
   7,867,128.38x = 12,150,065.81 × 12,150,065.81
4. Step 4: Simplify right side
   7,867,128.38x = 147,624,099,248,081.28
5. Step 5: Solve for x
   x = 147,624,099,248,081.28/7,867,128.38
6. Step 6: Final answer
   x = 18,764,674.00