Finding the Third Proportional to 478,558 and 1,051,458

Step by Step Solution

1. Step 1: Write the proportion equation
   478,558 : 1,051,458 = 1,051,458 : x
2. Step 2: Convert to fraction form
   478,558/1,051,458 = 1,051,458/x
3. Step 3: Cross multiply
   478,558x = 1,051,458 × 1,051,458
4. Step 4: Simplify right side
   478,558x = 1,105,563,925,764
5. Step 5: Solve for x
   x = 1,105,563,925,764/478,558
6. Step 6: Final answer
   x = 2,310,198.40