Finding the Third Proportional to 488,349 and 705,429

Step by Step Solution

1. Step 1: Write the proportion equation
   488,349 : 705,429 = 705,429 : x
2. Step 2: Convert to fraction form
   488,349/705,429 = 705,429/x
3. Step 3: Cross multiply
   488,349x = 705,429 × 705,429
4. Step 4: Simplify right side
   488,349x = 497,630,074,041
5. Step 5: Solve for x
   x = 497,630,074,041/488,349
6. Step 6: Final answer
   x = 1,019,005.00