Finding the Third Proportional to 59,111 and 90,854

Step by Step Solution

1. Step 1: Write the proportion equation
   59,111 : 90,854 = 90,854 : x
2. Step 2: Convert to fraction form
   59,111/90,854 = 90,854/x
3. Step 3: Cross multiply
   59,111x = 90,854 × 90,854
4. Step 4: Simplify right side
   59,111x = 8,254,449,316
5. Step 5: Solve for x
   x = 8,254,449,316/59,111
6. Step 6: Final answer
   x = 139,643.20