Finding the Third Proportional to 200,532 and 428,131.50

Step by Step Solution

1. Step 1: Write the proportion equation
   200,532 : 428,131.50 = 428,131.50 : x
2. Step 2: Convert to fraction form
   200,532/428,131.50 = 428,131.50/x
3. Step 3: Cross multiply
   200,532x = 428,131.50 × 428,131.50
4. Step 4: Simplify right side
   200,532x = 183,296,581,292.25
5. Step 5: Solve for x
   x = 183,296,581,292.25/200,532
6. Step 6: Final answer
   x = 914,051.53