Finding the Third Proportional to 243,830.25 and 521,460

Step by Step Solution

1. Step 1: Write the proportion equation
   243,830.25 : 521,460 = 521,460 : x
2. Step 2: Convert to fraction form
   243,830.25/521,460 = 521,460/x
3. Step 3: Cross multiply
   243,830.25x = 521,460 × 521,460
4. Step 4: Simplify right side
   243,830.25x = 271,920,531,600
5. Step 5: Solve for x
   x = 271,920,531,600/243,830.25
6. Step 6: Final answer
   x = 1,115,204.25