Finding the Third Proportional to 200,456 and 432,012

Step by Step Solution

1. Step 1: Write the proportion equation
   200,456 : 432,012 = 432,012 : x
2. Step 2: Convert to fraction form
   200,456/432,012 = 432,012/x
3. Step 3: Cross multiply
   200,456x = 432,012 × 432,012
4. Step 4: Simplify right side
   200,456x = 186,634,368,144
5. Step 5: Solve for x
   x = 186,634,368,144/200,456
6. Step 6: Final answer
   x = 931,049.05