Finding the Third Proportional to 42,770.25 and 67,091.63

Step by Step Solution

1. Step 1: Write the proportion equation
   42,770.25 : 67,091.63 = 67,091.63 : x
2. Step 2: Convert to fraction form
   42,770.25/67,091.63 = 67,091.63/x
3. Step 3: Cross multiply
   42,770.25x = 67,091.63 × 67,091.63
4. Step 4: Simplify right side
   42,770.25x = 4,501,286,145.14
5. Step 5: Solve for x
   x = 4,501,286,145.14/42,770.25
6. Step 6: Final answer
   x = 105,243.39