Finding the Third Proportional to 91,611 and 130,759.50

Step by Step Solution

1. Step 1: Write the proportion equation
   91,611 : 130,759.50 = 130,759.50 : x
2. Step 2: Convert to fraction form
   91,611/130,759.50 = 130,759.50/x
3. Step 3: Cross multiply
   91,611x = 130,759.50 × 130,759.50
4. Step 4: Simplify right side
   91,611x = 17,098,046,840.25
5. Step 5: Solve for x
   x = 17,098,046,840.25/91,611
6. Step 6: Final answer
   x = 186,637.49