Finding the Third Proportional to 243,644.63 and 374,976

Step by Step Solution

1. Step 1: Write the proportion equation
   243,644.63 : 374,976 = 374,976 : x
2. Step 2: Convert to fraction form
   243,644.63/374,976 = 374,976/x
3. Step 3: Cross multiply
   243,644.63x = 374,976 × 374,976
4. Step 4: Simplify right side
   243,644.63x = 140,607,000,576
5. Step 5: Solve for x
   x = 140,607,000,576/243,644.63
6. Step 6: Final answer
   x = 577,098.72