Finding the Third Proportional to 58,546 and 90,791

Step by Step Solution

1. Step 1: Write the proportion equation
   58,546 : 90,791 = 90,791 : x
2. Step 2: Convert to fraction form
   58,546/90,791 = 90,791/x
3. Step 3: Cross multiply
   58,546x = 90,791 × 90,791
4. Step 4: Simplify right side
   58,546x = 8,243,005,681
5. Step 5: Solve for x
   x = 8,243,005,681/58,546
6. Step 6: Final answer
   x = 140,795.37