Finding the Third Proportional to 42,346.50 and 89,391

Step by Step Solution

1. Step 1: Write the proportion equation
   42,346.50 : 89,391 = 89,391 : x
2. Step 2: Convert to fraction form
   42,346.50/89,391 = 89,391/x
3. Step 3: Cross multiply
   42,346.50x = 89,391 × 89,391
4. Step 4: Simplify right side
   42,346.50x = 7,990,750,881
5. Step 5: Solve for x
   x = 7,990,750,881/42,346.50
6. Step 6: Final answer
   x = 188,699.20