Finding the Third Proportional to 58,909 and 91,011.50

Step by Step Solution

1. Step 1: Write the proportion equation
   58,909 : 91,011.50 = 91,011.50 : x
2. Step 2: Convert to fraction form
   58,909/91,011.50 = 91,011.50/x
3. Step 3: Cross multiply
   58,909x = 91,011.50 × 91,011.50
4. Step 4: Simplify right side
   58,909x = 8,283,093,132.25
5. Step 5: Solve for x
   x = 8,283,093,132.25/58,909
6. Step 6: Final answer
   x = 140,608.28