Finding the Third Proportional to 243,507 and 374,494.50

Step by Step Solution

1. Step 1: Write the proportion equation
   243,507 : 374,494.50 = 374,494.50 : x
2. Step 2: Convert to fraction form
   243,507/374,494.50 = 374,494.50/x
3. Step 3: Cross multiply
   243,507x = 374,494.50 × 374,494.50
4. Step 4: Simplify right side
   243,507x = 140,246,130,530.25
5. Step 5: Solve for x
   x = 140,246,130,530.25/243,507
6. Step 6: Final answer
   x = 575,942.91