Finding the Third Proportional to 11,715,804 and 18,139,032

Step by Step Solution

1. Step 1: Write the proportion equation
   11,715,804 : 18,139,032 = 18,139,032 : x
2. Step 2: Convert to fraction form
   11,715,804/18,139,032 = 18,139,032/x
3. Step 3: Cross multiply
   11,715,804x = 18,139,032 × 18,139,032
4. Step 4: Simplify right side
   11,715,804x = 329,024,481,897,024
5. Step 5: Solve for x
   x = 329,024,481,897,024/11,715,804
6. Step 6: Final answer
   x = 28,083,815.84