Finding the Third Proportional to 76,815 and 167,699.25

Step by Step Solution

1. Step 1: Write the proportion equation
   76,815 : 167,699.25 = 167,699.25 : x
2. Step 2: Convert to fraction form
   76,815/167,699.25 = 167,699.25/x
3. Step 3: Cross multiply
   76,815x = 167,699.25 × 167,699.25
4. Step 4: Simplify right side
   76,815x = 28,123,038,450.56
5. Step 5: Solve for x
   x = 28,123,038,450.56/76,815
6. Step 6: Final answer
   x = 366,113.89