Finding the Third Proportional to 72,417 and 151,756.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,417 : 151,756.50 = 151,756.50 : x
2. Step 2: Convert to fraction form
   72,417/151,756.50 = 151,756.50/x
3. Step 3: Cross multiply
   72,417x = 151,756.50 × 151,756.50
4. Step 4: Simplify right side
   72,417x = 23,030,035,292.25
5. Step 5: Solve for x
   x = 23,030,035,292.25/72,417
6. Step 6: Final answer
   x = 318,019.74