Finding the Third Proportional to 42,296 and 90,424

Step by Step Solution

1. Step 1: Write the proportion equation
   42,296 : 90,424 = 90,424 : x
2. Step 2: Convert to fraction form
   42,296/90,424 = 90,424/x
3. Step 3: Cross multiply
   42,296x = 90,424 × 90,424
4. Step 4: Simplify right side
   42,296x = 8,176,499,776
5. Step 5: Solve for x
   x = 8,176,499,776/42,296
6. Step 6: Final answer
   x = 193,316.15