Finding the Third Proportional to 920,330 and 1,977,279

Step by Step Solution

1. Step 1: Write the proportion equation
   920,330 : 1,977,279 = 1,977,279 : x
2. Step 2: Convert to fraction form
   920,330/1,977,279 = 1,977,279/x
3. Step 3: Cross multiply
   920,330x = 1,977,279 × 1,977,279
4. Step 4: Simplify right side
   920,330x = 3,909,632,243,841
5. Step 5: Solve for x
   x = 3,909,632,243,841/920,330
6. Step 6: Final answer
   x = 4,248,076.50