Finding the Third Proportional to 34,618.50 and 75,643.50

Step by Step Solution

1. Step 1: Write the proportion equation
   34,618.50 : 75,643.50 = 75,643.50 : x
2. Step 2: Convert to fraction form
   34,618.50/75,643.50 = 75,643.50/x
3. Step 3: Cross multiply
   34,618.50x = 75,643.50 × 75,643.50
4. Step 4: Simplify right side
   34,618.50x = 5,721,939,092.25
5. Step 5: Solve for x
   x = 5,721,939,092.25/34,618.50
6. Step 6: Final answer
   x = 165,285.59