Finding the Third Proportional to 19,590 and 42,297

Step by Step Solution

1. Step 1: Write the proportion equation
   19,590 : 42,297 = 42,297 : x
2. Step 2: Convert to fraction form
   19,590/42,297 = 42,297/x
3. Step 3: Cross multiply
   19,590x = 42,297 × 42,297
4. Step 4: Simplify right side
   19,590x = 1,789,036,209
5. Step 5: Solve for x
   x = 1,789,036,209/19,590
6. Step 6: Final answer
   x = 91,323.95