Finding the Third Proportional to 30,511.88 and 62,510.25

Step by Step Solution

1. Step 1: Write the proportion equation
   30,511.88 : 62,510.25 = 62,510.25 : x
2. Step 2: Convert to fraction form
   30,511.88/62,510.25 = 62,510.25/x
3. Step 3: Cross multiply
   30,511.88x = 62,510.25 × 62,510.25
4. Step 4: Simplify right side
   30,511.88x = 3,907,531,355.06
5. Step 5: Solve for x
   x = 3,907,531,355.06/30,511.88
6. Step 6: Final answer
   x = 128,065.92