Finding the Third Proportional to 62,300 and 89,554

Step by Step Solution

1. Step 1: Write the proportion equation
   62,300 : 89,554 = 89,554 : x
2. Step 2: Convert to fraction form
   62,300/89,554 = 89,554/x
3. Step 3: Cross multiply
   62,300x = 89,554 × 89,554
4. Step 4: Simplify right side
   62,300x = 8,019,918,916
5. Step 5: Solve for x
   x = 8,019,918,916/62,300
6. Step 6: Final answer
   x = 128,730.64