Finding the Third Proportional to 121,061 and 281,322

Step by Step Solution

1. Step 1: Write the proportion equation
   121,061 : 281,322 = 281,322 : x
2. Step 2: Convert to fraction form
   121,061/281,322 = 281,322/x
3. Step 3: Cross multiply
   121,061x = 281,322 × 281,322
4. Step 4: Simplify right side
   121,061x = 79,142,067,684
5. Step 5: Solve for x
   x = 79,142,067,684/121,061
6. Step 6: Final answer
   x = 653,737.11