Finding the Third Proportional to 8,240,814 and 12,123,054

Step by Step Solution

1. Step 1: Write the proportion equation
   8,240,814 : 12,123,054 = 12,123,054 : x
2. Step 2: Convert to fraction form
   8,240,814/12,123,054 = 12,123,054/x
3. Step 3: Cross multiply
   8,240,814x = 12,123,054 × 12,123,054
4. Step 4: Simplify right side
   8,240,814x = 146,968,438,286,916
5. Step 5: Solve for x
   x = 146,968,438,286,916/8,240,814
6. Step 6: Final answer
   x = 17,834,213.74