Finding the Third Proportional to 42,261 and 90,519

Step by Step Solution

1. Step 1: Write the proportion equation
   42,261 : 90,519 = 90,519 : x
2. Step 2: Convert to fraction form
   42,261/90,519 = 90,519/x
3. Step 3: Cross multiply
   42,261x = 90,519 × 90,519
4. Step 4: Simplify right side
   42,261x = 8,193,689,361
5. Step 5: Solve for x
   x = 8,193,689,361/42,261
6. Step 6: Final answer
   x = 193,883.00