Finding the Third Proportional to 64,978.50 and 103,382.25

Step by Step Solution

1. Step 1: Write the proportion equation
   64,978.50 : 103,382.25 = 103,382.25 : x
2. Step 2: Convert to fraction form
   64,978.50/103,382.25 = 103,382.25/x
3. Step 3: Cross multiply
   64,978.50x = 103,382.25 × 103,382.25
4. Step 4: Simplify right side
   64,978.50x = 10,687,889,615.06
5. Step 5: Solve for x
   x = 10,687,889,615.06/64,978.50
6. Step 6: Final answer
   x = 164,483.48