Finding the Third Proportional to 42,137 and 90,271.25

Step by Step Solution

1. Step 1: Write the proportion equation
   42,137 : 90,271.25 = 90,271.25 : x
2. Step 2: Convert to fraction form
   42,137/90,271.25 = 90,271.25/x
3. Step 3: Cross multiply
   42,137x = 90,271.25 × 90,271.25
4. Step 4: Simplify right side
   42,137x = 8,148,898,576.56
5. Step 5: Solve for x
   x = 8,148,898,576.56/42,137
6. Step 6: Final answer
   x = 193,390.57