Finding the Third Proportional to 89,172.75 and 130,477.50

Step by Step Solution

1. Step 1: Write the proportion equation
   89,172.75 : 130,477.50 = 130,477.50 : x
2. Step 2: Convert to fraction form
   89,172.75/130,477.50 = 130,477.50/x
3. Step 3: Cross multiply
   89,172.75x = 130,477.50 × 130,477.50
4. Step 4: Simplify right side
   89,172.75x = 17,024,378,006.25
5. Step 5: Solve for x
   x = 17,024,378,006.25/89,172.75
6. Step 6: Final answer
   x = 190,914.58