Finding the Third Proportional to 420,556.50 and 896,166

Step by Step Solution

1. Step 1: Write the proportion equation
   420,556.50 : 896,166 = 896,166 : x
2. Step 2: Convert to fraction form
   420,556.50/896,166 = 896,166/x
3. Step 3: Cross multiply
   420,556.50x = 896,166 × 896,166
4. Step 4: Simplify right side
   420,556.50x = 803,113,499,556
5. Step 5: Solve for x
   x = 803,113,499,556/420,556.50
6. Step 6: Final answer
   x = 1,909,644.72