Finding the Third Proportional to 243,726 and 376,651.50

Step by Step Solution

1. Step 1: Write the proportion equation
   243,726 : 376,651.50 = 376,651.50 : x
2. Step 2: Convert to fraction form
   243,726/376,651.50 = 376,651.50/x
3. Step 3: Cross multiply
   243,726x = 376,651.50 × 376,651.50
4. Step 4: Simplify right side
   243,726x = 141,866,352,452.25
5. Step 5: Solve for x
   x = 141,866,352,452.25/243,726
6. Step 6: Final answer
   x = 582,073.12