Finding the Third Proportional to 11,348,513 and 18,066,538.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,348,513 : 18,066,538.50 = 18,066,538.50 : x
2. Step 2: Convert to fraction form
   11,348,513/18,066,538.50 = 18,066,538.50/x
3. Step 3: Cross multiply
   11,348,513x = 18,066,538.50 × 18,066,538.50
4. Step 4: Simplify right side
   11,348,513x = 326,399,813,371,982.25
5. Step 5: Solve for x
   x = 326,399,813,371,982.25/11,348,513
6. Step 6: Final answer
   x = 28,761,460.94