Finding the Third Proportional to 689,140 and 1,011,030

Step by Step Solution

1. Step 1: Write the proportion equation
   689,140 : 1,011,030 = 1,011,030 : x
2. Step 2: Convert to fraction form
   689,140/1,011,030 = 1,011,030/x
3. Step 3: Cross multiply
   689,140x = 1,011,030 × 1,011,030
4. Step 4: Simplify right side
   689,140x = 1,022,181,660,900
5. Step 5: Solve for x
   x = 1,022,181,660,900/689,140
6. Step 6: Final answer
   x = 1,483,271.41