Finding the Third Proportional to 200,949 and 429,535

Step by Step Solution

1. Step 1: Write the proportion equation
   200,949 : 429,535 = 429,535 : x
2. Step 2: Convert to fraction form
   200,949/429,535 = 429,535/x
3. Step 3: Cross multiply
   200,949x = 429,535 × 429,535
4. Step 4: Simplify right side
   200,949x = 184,500,316,225
5. Step 5: Solve for x
   x = 184,500,316,225/200,949
6. Step 6: Final answer
   x = 918,144.98