Finding the Third Proportional to 59,209 and 90,029

Step by Step Solution

1. Step 1: Write the proportion equation
   59,209 : 90,029 = 90,029 : x
2. Step 2: Convert to fraction form
   59,209/90,029 = 90,029/x
3. Step 3: Cross multiply
   59,209x = 90,029 × 90,029
4. Step 4: Simplify right side
   59,209x = 8,105,220,841
5. Step 5: Solve for x
   x = 8,105,220,841/59,209
6. Step 6: Final answer
   x = 136,891.70