Finding the Third Proportional to 148,449 and 323,539.50

Step by Step Solution

1. Step 1: Write the proportion equation
   148,449 : 323,539.50 = 323,539.50 : x
2. Step 2: Convert to fraction form
   148,449/323,539.50 = 323,539.50/x
3. Step 3: Cross multiply
   148,449x = 323,539.50 × 323,539.50
4. Step 4: Simplify right side
   148,449x = 104,677,808,060.25
5. Step 5: Solve for x
   x = 104,677,808,060.25/148,449
6. Step 6: Final answer
   x = 705,143.23