Finding the Third Proportional to 30,742.88 and 72,543.94

Step by Step Solution

1. Step 1: Write the proportion equation
   30,742.88 : 72,543.94 = 72,543.94 : x
2. Step 2: Convert to fraction form
   30,742.88/72,543.94 = 72,543.94/x
3. Step 3: Cross multiply
   30,742.88x = 72,543.94 × 72,543.94
4. Step 4: Simplify right side
   30,742.88x = 5,262,622,868.00
5. Step 5: Solve for x
   x = 5,262,622,868.00/30,742.88
6. Step 6: Final answer
   x = 171,181.87