Finding the Third Proportional to 57,784.50 and 91,687.50

Step by Step Solution

1. Step 1: Write the proportion equation
   57,784.50 : 91,687.50 = 91,687.50 : x
2. Step 2: Convert to fraction form
   57,784.50/91,687.50 = 91,687.50/x
3. Step 3: Cross multiply
   57,784.50x = 91,687.50 × 91,687.50
4. Step 4: Simplify right side
   57,784.50x = 8,406,597,656.25
5. Step 5: Solve for x
   x = 8,406,597,656.25/57,784.50
6. Step 6: Final answer
   x = 145,481.88