Finding the Third Proportional to 243,748.50 and 376,686

Step by Step Solution

1. Step 1: Write the proportion equation
   243,748.50 : 376,686 = 376,686 : x
2. Step 2: Convert to fraction form
   243,748.50/376,686 = 376,686/x
3. Step 3: Cross multiply
   243,748.50x = 376,686 × 376,686
4. Step 4: Simplify right side
   243,748.50x = 141,892,342,596
5. Step 5: Solve for x
   x = 141,892,342,596/243,748.50
6. Step 6: Final answer
   x = 582,126.01