Finding the Third Proportional to 42,666 and 58,813

Step by Step Solution

1. Step 1: Write the proportion equation
   42,666 : 58,813 = 58,813 : x
2. Step 2: Convert to fraction form
   42,666/58,813 = 58,813/x
3. Step 3: Cross multiply
   42,666x = 58,813 × 58,813
4. Step 4: Simplify right side
   42,666x = 3,458,968,969
5. Step 5: Solve for x
   x = 3,458,968,969/42,666
6. Step 6: Final answer
   x = 81,070.85