Finding the Third Proportional to 52,990 and 74,271

Step by Step Solution

1. Step 1: Write the proportion equation
   52,990 : 74,271 = 74,271 : x
2. Step 2: Convert to fraction form
   52,990/74,271 = 74,271/x
3. Step 3: Cross multiply
   52,990x = 74,271 × 74,271
4. Step 4: Simplify right side
   52,990x = 5,516,181,441
5. Step 5: Solve for x
   x = 5,516,181,441/52,990
6. Step 6: Final answer
   x = 104,098.54