Finding the Third Proportional to 645,210 and 1,003,086

Step by Step Solution

1. Step 1: Write the proportion equation
   645,210 : 1,003,086 = 1,003,086 : x
2. Step 2: Convert to fraction form
   645,210/1,003,086 = 1,003,086/x
3. Step 3: Cross multiply
   645,210x = 1,003,086 × 1,003,086
4. Step 4: Simplify right side
   645,210x = 1,006,181,523,396
5. Step 5: Solve for x
   x = 1,006,181,523,396/645,210
6. Step 6: Final answer
   x = 1,559,463.62