Finding the Third Proportional to 694,130 and 1,521,210

Step by Step Solution

1. Step 1: Write the proportion equation
   694,130 : 1,521,210 = 1,521,210 : x
2. Step 2: Convert to fraction form
   694,130/1,521,210 = 1,521,210/x
3. Step 3: Cross multiply
   694,130x = 1,521,210 × 1,521,210
4. Step 4: Simplify right side
   694,130x = 2,314,079,864,100
5. Step 5: Solve for x
   x = 2,314,079,864,100/694,130
6. Step 6: Final answer
   x = 3,333,784.54