Finding the Third Proportional to 15,108.19 and 30,511.69

Step by Step Solution

1. Step 1: Write the proportion equation
   15,108.19 : 30,511.69 = 30,511.69 : x
2. Step 2: Convert to fraction form
   15,108.19/30,511.69 = 30,511.69/x
3. Step 3: Cross multiply
   15,108.19x = 30,511.69 × 30,511.69
4. Step 4: Simplify right side
   15,108.19x = 930,963,074.10
5. Step 5: Solve for x
   x = 930,963,074.10/15,108.19
6. Step 6: Final answer
   x = 61,619.77