Finding the Third Proportional to 11,139,015 and 17,724,363

Step by Step Solution

1. Step 1: Write the proportion equation
   11,139,015 : 17,724,363 = 17,724,363 : x
2. Step 2: Convert to fraction form
   11,139,015/17,724,363 = 17,724,363/x
3. Step 3: Cross multiply
   11,139,015x = 17,724,363 × 17,724,363
4. Step 4: Simplify right side
   11,139,015x = 314,153,043,755,769
5. Step 5: Solve for x
   x = 314,153,043,755,769/11,139,015
6. Step 6: Final answer
   x = 28,202,946.47