Finding the Third Proportional to 62,458 and 90,284

Step by Step Solution

1. Step 1: Write the proportion equation
   62,458 : 90,284 = 90,284 : x
2. Step 2: Convert to fraction form
   62,458/90,284 = 90,284/x
3. Step 3: Cross multiply
   62,458x = 90,284 × 90,284
4. Step 4: Simplify right side
   62,458x = 8,151,200,656
5. Step 5: Solve for x
   x = 8,151,200,656/62,458
6. Step 6: Final answer
   x = 130,506.91