Finding the Third Proportional to 58,700 and 89,171.50

Step by Step Solution

1. Step 1: Write the proportion equation
   58,700 : 89,171.50 = 89,171.50 : x
2. Step 2: Convert to fraction form
   58,700/89,171.50 = 89,171.50/x
3. Step 3: Cross multiply
   58,700x = 89,171.50 × 89,171.50
4. Step 4: Simplify right side
   58,700x = 7,951,556,412.25
5. Step 5: Solve for x
   x = 7,951,556,412.25/58,700
6. Step 6: Final answer
   x = 135,460.93