Finding the Third Proportional to 55,573 and 72,991.50

Step by Step Solution

1. Step 1: Write the proportion equation
   55,573 : 72,991.50 = 72,991.50 : x
2. Step 2: Convert to fraction form
   55,573/72,991.50 = 72,991.50/x
3. Step 3: Cross multiply
   55,573x = 72,991.50 × 72,991.50
4. Step 4: Simplify right side
   55,573x = 5,327,759,072.25
5. Step 5: Solve for x
   x = 5,327,759,072.25/55,573
6. Step 6: Final answer
   x = 95,869.56