Finding the Third Proportional to 61,631 and 88,071.50

Step by Step Solution

1. Step 1: Write the proportion equation
   61,631 : 88,071.50 = 88,071.50 : x
2. Step 2: Convert to fraction form
   61,631/88,071.50 = 88,071.50/x
3. Step 3: Cross multiply
   61,631x = 88,071.50 × 88,071.50
4. Step 4: Simplify right side
   61,631x = 7,756,589,112.25
5. Step 5: Solve for x
   x = 7,756,589,112.25/61,631
6. Step 6: Final answer
   x = 125,855.32