Finding the Third Proportional to 139,753.50 and 197,561.25

Step by Step Solution

1. Step 1: Write the proportion equation
   139,753.50 : 197,561.25 = 197,561.25 : x
2. Step 2: Convert to fraction form
   139,753.50/197,561.25 = 197,561.25/x
3. Step 3: Cross multiply
   139,753.50x = 197,561.25 × 197,561.25
4. Step 4: Simplify right side
   139,753.50x = 39,030,447,501.56
5. Step 5: Solve for x
   x = 39,030,447,501.56/139,753.50
6. Step 6: Final answer
   x = 279,280.64