Finding the Third Proportional to 200,069 and 429,526

Step by Step Solution

1. Step 1: Write the proportion equation
   200,069 : 429,526 = 429,526 : x
2. Step 2: Convert to fraction form
   200,069/429,526 = 429,526/x
3. Step 3: Cross multiply
   200,069x = 429,526 × 429,526
4. Step 4: Simplify right side
   200,069x = 184,492,584,676
5. Step 5: Solve for x
   x = 184,492,584,676/200,069
6. Step 6: Final answer
   x = 922,144.78