Finding the Third Proportional to 200,865 and 437,611.50

Step by Step Solution

1. Step 1: Write the proportion equation
   200,865 : 437,611.50 = 437,611.50 : x
2. Step 2: Convert to fraction form
   200,865/437,611.50 = 437,611.50/x
3. Step 3: Cross multiply
   200,865x = 437,611.50 × 437,611.50
4. Step 4: Simplify right side
   200,865x = 191,503,824,932.25
5. Step 5: Solve for x
   x = 191,503,824,932.25/200,865
6. Step 6: Final answer
   x = 953,395.69