Finding the Third Proportional to 5,388,051 and 8,138,058

Step by Step Solution

1. Step 1: Write the proportion equation
   5,388,051 : 8,138,058 = 8,138,058 : x
2. Step 2: Convert to fraction form
   5,388,051/8,138,058 = 8,138,058/x
3. Step 3: Cross multiply
   5,388,051x = 8,138,058 × 8,138,058
4. Step 4: Simplify right side
   5,388,051x = 66,227,988,011,364
5. Step 5: Solve for x
   x = 66,227,988,011,364/5,388,051
6. Step 6: Final answer
   x = 12,291,640.89