Finding the Third Proportional to 148,081.50 and 324,985.50

Step by Step Solution

1. Step 1: Write the proportion equation
   148,081.50 : 324,985.50 = 324,985.50 : x
2. Step 2: Convert to fraction form
   148,081.50/324,985.50 = 324,985.50/x
3. Step 3: Cross multiply
   148,081.50x = 324,985.50 × 324,985.50
4. Step 4: Simplify right side
   148,081.50x = 105,615,575,210.25
5. Step 5: Solve for x
   x = 105,615,575,210.25/148,081.50
6. Step 6: Final answer
   x = 713,226.00