Finding the Third Proportional to 61,173 and 89,545.50

Step by Step Solution

1. Step 1: Write the proportion equation
   61,173 : 89,545.50 = 89,545.50 : x
2. Step 2: Convert to fraction form
   61,173/89,545.50 = 89,545.50/x
3. Step 3: Cross multiply
   61,173x = 89,545.50 × 89,545.50
4. Step 4: Simplify right side
   61,173x = 8,018,396,570.25
5. Step 5: Solve for x
   x = 8,018,396,570.25/61,173
6. Step 6: Final answer
   x = 131,077.38