Finding the Third Proportional to 42,273 and 89,261

Step by Step Solution

1. Step 1: Write the proportion equation
   42,273 : 89,261 = 89,261 : x
2. Step 2: Convert to fraction form
   42,273/89,261 = 89,261/x
3. Step 3: Cross multiply
   42,273x = 89,261 × 89,261
4. Step 4: Simplify right side
   42,273x = 7,967,526,121
5. Step 5: Solve for x
   x = 7,967,526,121/42,273
6. Step 6: Final answer
   x = 188,477.90