Finding the Third Proportional to 42,906 and 89,916

Step by Step Solution

1. Step 1: Write the proportion equation
   42,906 : 89,916 = 89,916 : x
2. Step 2: Convert to fraction form
   42,906/89,916 = 89,916/x
3. Step 3: Cross multiply
   42,906x = 89,916 × 89,916
4. Step 4: Simplify right side
   42,906x = 8,084,887,056
5. Step 5: Solve for x
   x = 8,084,887,056/42,906
6. Step 6: Final answer
   x = 188,432.55