Finding the Third Proportional to 30,172.50 and 61,175.25

Step by Step Solution

1. Step 1: Write the proportion equation
   30,172.50 : 61,175.25 = 61,175.25 : x
2. Step 2: Convert to fraction form
   30,172.50/61,175.25 = 61,175.25/x
3. Step 3: Cross multiply
   30,172.50x = 61,175.25 × 61,175.25
4. Step 4: Simplify right side
   30,172.50x = 3,742,411,212.56
5. Step 5: Solve for x
   x = 3,742,411,212.56/30,172.50
6. Step 6: Final answer
   x = 124,033.85