Finding the Third Proportional to 27,608.25 and 42,991.88

Step by Step Solution

1. Step 1: Write the proportion equation
   27,608.25 : 42,991.88 = 42,991.88 : x
2. Step 2: Convert to fraction form
   27,608.25/42,991.88 = 42,991.88/x
3. Step 3: Cross multiply
   27,608.25x = 42,991.88 × 42,991.88
4. Step 4: Simplify right side
   27,608.25x = 1,848,301,316.02
5. Step 5: Solve for x
   x = 1,848,301,316.02/27,608.25
6. Step 6: Final answer
   x = 66,947.43