Finding the Third Proportional to 5,234,174 and 7,877,469

Step by Step Solution

1. Step 1: Write the proportion equation
   5,234,174 : 7,877,469 = 7,877,469 : x
2. Step 2: Convert to fraction form
   5,234,174/7,877,469 = 7,877,469/x
3. Step 3: Cross multiply
   5,234,174x = 7,877,469 × 7,877,469
4. Step 4: Simplify right side
   5,234,174x = 62,054,517,845,961
5. Step 5: Solve for x
   x = 62,054,517,845,961/5,234,174
6. Step 6: Final answer
   x = 11,855,646.73