Finding the Third Proportional to 58,896 and 90,072

Step by Step Solution

1. Step 1: Write the proportion equation
   58,896 : 90,072 = 90,072 : x
2. Step 2: Convert to fraction form
   58,896/90,072 = 90,072/x
3. Step 3: Cross multiply
   58,896x = 90,072 × 90,072
4. Step 4: Simplify right side
   58,896x = 8,112,965,184
5. Step 5: Solve for x
   x = 8,112,965,184/58,896
6. Step 6: Final answer
   x = 137,750.70