Finding the Third Proportional to 34,156.69 and 51,690.66

Step by Step Solution

1. Step 1: Write the proportion equation
   34,156.69 : 51,690.66 = 51,690.66 : x
2. Step 2: Convert to fraction form
   34,156.69/51,690.66 = 51,690.66/x
3. Step 3: Cross multiply
   34,156.69x = 51,690.66 × 51,690.66
4. Step 4: Simplify right side
   34,156.69x = 2,671,923,943.56
5. Step 5: Solve for x
   x = 2,671,923,943.56/34,156.69
6. Step 6: Final answer
   x = 78,225.50