Finding the Third Proportional to 148,552 and 243,860

Step by Step Solution

1. Step 1: Write the proportion equation
   148,552 : 243,860 = 243,860 : x
2. Step 2: Convert to fraction form
   148,552/243,860 = 243,860/x
3. Step 3: Cross multiply
   148,552x = 243,860 × 243,860
4. Step 4: Simplify right side
   148,552x = 59,467,699,600
5. Step 5: Solve for x
   x = 59,467,699,600/148,552
6. Step 6: Final answer
   x = 400,315.71