Finding the Third Proportional to 28,958 and 63,458

Step by Step Solution

1. Step 1: Write the proportion equation
   28,958 : 63,458 = 63,458 : x
2. Step 2: Convert to fraction form
   28,958/63,458 = 63,458/x
3. Step 3: Cross multiply
   28,958x = 63,458 × 63,458
4. Step 4: Simplify right side
   28,958x = 4,026,917,764
5. Step 5: Solve for x
   x = 4,026,917,764/28,958
6. Step 6: Final answer
   x = 139,060.63