Finding the Third Proportional to 5,388,054 and 8,138,060

Step by Step Solution

1. Step 1: Write the proportion equation
   5,388,054 : 8,138,060 = 8,138,060 : x
2. Step 2: Convert to fraction form
   5,388,054/8,138,060 = 8,138,060/x
3. Step 3: Cross multiply
   5,388,054x = 8,138,060 × 8,138,060
4. Step 4: Simplify right side
   5,388,054x = 66,228,020,563,600
5. Step 5: Solve for x
   x = 66,228,020,563,600/5,388,054
6. Step 6: Final answer
   x = 12,291,640.09