Finding the Third Proportional to 243,480 and 493,656

Step by Step Solution

1. Step 1: Write the proportion equation
   243,480 : 493,656 = 493,656 : x
2. Step 2: Convert to fraction form
   243,480/493,656 = 493,656/x
3. Step 3: Cross multiply
   243,480x = 493,656 × 493,656
4. Step 4: Simplify right side
   243,480x = 243,696,246,336
5. Step 5: Solve for x
   x = 243,696,246,336/243,480
6. Step 6: Final answer
   x = 1,000,888.15