Finding the Third Proportional to 920,031 and 1,980,030

Step by Step Solution

1. Step 1: Write the proportion equation
   920,031 : 1,980,030 = 1,980,030 : x
2. Step 2: Convert to fraction form
   920,031/1,980,030 = 1,980,030/x
3. Step 3: Cross multiply
   920,031x = 1,980,030 × 1,980,030
4. Step 4: Simplify right side
   920,031x = 3,920,518,800,900
5. Step 5: Solve for x
   x = 3,920,518,800,900/920,031
6. Step 6: Final answer
   x = 4,261,289.89