Finding the Third Proportional to 34,638.47 and 74,456.72

Step by Step Solution

1. Step 1: Write the proportion equation
   34,638.47 : 74,456.72 = 74,456.72 : x
2. Step 2: Convert to fraction form
   34,638.47/74,456.72 = 74,456.72/x
3. Step 3: Cross multiply
   34,638.47x = 74,456.72 × 74,456.72
4. Step 4: Simplify right side
   34,638.47x = 5,543,802,967.02
5. Step 5: Solve for x
   x = 5,543,802,967.02/34,638.47
6. Step 6: Final answer
   x = 160,047.58