Finding the Third Proportional to 11,139,005.50 and 17,724,347

Step by Step Solution

1. Step 1: Write the proportion equation
   11,139,005.50 : 17,724,347 = 17,724,347 : x
2. Step 2: Convert to fraction form
   11,139,005.50/17,724,347 = 17,724,347/x
3. Step 3: Cross multiply
   11,139,005.50x = 17,724,347 × 17,724,347
4. Step 4: Simplify right side
   11,139,005.50x = 314,152,476,576,409
5. Step 5: Solve for x
   x = 314,152,476,576,409/11,139,005.50
6. Step 6: Final answer
   x = 28,202,919.60