Finding the Third Proportional to 520,210 and 1,118,020

Step by Step Solution

1. Step 1: Write the proportion equation
   520,210 : 1,118,020 = 1,118,020 : x
2. Step 2: Convert to fraction form
   520,210/1,118,020 = 1,118,020/x
3. Step 3: Cross multiply
   520,210x = 1,118,020 × 1,118,020
4. Step 4: Simplify right side
   520,210x = 1,249,968,720,400
5. Step 5: Solve for x
   x = 1,249,968,720,400/520,210
6. Step 6: Final answer
   x = 2,402,815.63