Finding the Third Proportional to 61,184.25 and 86,611.50

Step by Step Solution

1. Step 1: Write the proportion equation
   61,184.25 : 86,611.50 = 86,611.50 : x
2. Step 2: Convert to fraction form
   61,184.25/86,611.50 = 86,611.50/x
3. Step 3: Cross multiply
   61,184.25x = 86,611.50 × 86,611.50
4. Step 4: Simplify right side
   61,184.25x = 7,501,551,932.25
5. Step 5: Solve for x
   x = 7,501,551,932.25/61,184.25
6. Step 6: Final answer
   x = 122,605.93