Finding the Third Proportional to 148,009.50 and 325,543.50

Step by Step Solution

1. Step 1: Write the proportion equation
   148,009.50 : 325,543.50 = 325,543.50 : x
2. Step 2: Convert to fraction form
   148,009.50/325,543.50 = 325,543.50/x
3. Step 3: Cross multiply
   148,009.50x = 325,543.50 × 325,543.50
4. Step 4: Simplify right side
   148,009.50x = 105,978,570,392.25
5. Step 5: Solve for x
   x = 105,978,570,392.25/148,009.50
6. Step 6: Final answer
   x = 716,025.46