Finding the Third Proportional to 2,102,220 and 2,912,160

Step by Step Solution

1. Step 1: Write the proportion equation
   2,102,220 : 2,912,160 = 2,912,160 : x
2. Step 2: Convert to fraction form
   2,102,220/2,912,160 = 2,912,160/x
3. Step 3: Cross multiply
   2,102,220x = 2,912,160 × 2,912,160
4. Step 4: Simplify right side
   2,102,220x = 8,480,675,865,600
5. Step 5: Solve for x
   x = 8,480,675,865,600/2,102,220
6. Step 6: Final answer
   x = 4,034,152.40