Finding the Third Proportional to 67,810.50 and 147,511.50

Step by Step Solution

1. Step 1: Write the proportion equation
   67,810.50 : 147,511.50 = 147,511.50 : x
2. Step 2: Convert to fraction form
   67,810.50/147,511.50 = 147,511.50/x
3. Step 3: Cross multiply
   67,810.50x = 147,511.50 × 147,511.50
4. Step 4: Simplify right side
   67,810.50x = 21,759,642,632.25
5. Step 5: Solve for x
   x = 21,759,642,632.25/67,810.50
6. Step 6: Final answer
   x = 320,888.99