Finding the Third Proportional to 209,182 and 429,488

Step by Step Solution

1. Step 1: Write the proportion equation
   209,182 : 429,488 = 429,488 : x
2. Step 2: Convert to fraction form
   209,182/429,488 = 429,488/x
3. Step 3: Cross multiply
   209,182x = 429,488 × 429,488
4. Step 4: Simplify right side
   209,182x = 184,459,942,144
5. Step 5: Solve for x
   x = 184,459,942,144/209,182
6. Step 6: Final answer
   x = 881,815.56