Finding the Third Proportional to 5,678,344 and 8,817,054

Step by Step Solution

1. Step 1: Write the proportion equation
   5,678,344 : 8,817,054 = 8,817,054 : x
2. Step 2: Convert to fraction form
   5,678,344/8,817,054 = 8,817,054/x
3. Step 3: Cross multiply
   5,678,344x = 8,817,054 × 8,817,054
4. Step 4: Simplify right side
   5,678,344x = 77,740,441,238,916
5. Step 5: Solve for x
   x = 77,740,441,238,916/5,678,344
6. Step 6: Final answer
   x = 13,690,688.91