Finding the Third Proportional to 137,072.75 and 215,076

Step by Step Solution

1. Step 1: Write the proportion equation
   137,072.75 : 215,076 = 215,076 : x
2. Step 2: Convert to fraction form
   137,072.75/215,076 = 215,076/x
3. Step 3: Cross multiply
   137,072.75x = 215,076 × 215,076
4. Step 4: Simplify right side
   137,072.75x = 46,257,685,776
5. Step 5: Solve for x
   x = 46,257,685,776/137,072.75
6. Step 6: Final answer
   x = 337,468.14