Finding the Third Proportional to 11,139,007 and 17,724,349

Step by Step Solution

1. Step 1: Write the proportion equation
   11,139,007 : 17,724,349 = 17,724,349 : x
2. Step 2: Convert to fraction form
   11,139,007/17,724,349 = 17,724,349/x
3. Step 3: Cross multiply
   11,139,007x = 17,724,349 × 17,724,349
4. Step 4: Simplify right side
   11,139,007x = 314,152,547,473,801
5. Step 5: Solve for x
   x = 314,152,547,473,801/11,139,007
6. Step 6: Final answer
   x = 28,202,922.17