Finding the Third Proportional to 5,678,346 and 8,817,057

Step by Step Solution

1. Step 1: Write the proportion equation
   5,678,346 : 8,817,057 = 8,817,057 : x
2. Step 2: Convert to fraction form
   5,678,346/8,817,057 = 8,817,057/x
3. Step 3: Cross multiply
   5,678,346x = 8,817,057 × 8,817,057
4. Step 4: Simplify right side
   5,678,346x = 77,740,494,141,249
5. Step 5: Solve for x
   x = 77,740,494,141,249/5,678,346
6. Step 6: Final answer
   x = 13,690,693.41