Finding the Third Proportional to 786,470 and 1,720,122

Step by Step Solution

1. Step 1: Write the proportion equation
   786,470 : 1,720,122 = 1,720,122 : x
2. Step 2: Convert to fraction form
   786,470/1,720,122 = 1,720,122/x
3. Step 3: Cross multiply
   786,470x = 1,720,122 × 1,720,122
4. Step 4: Simplify right side
   786,470x = 2,958,819,694,884
5. Step 5: Solve for x
   x = 2,958,819,694,884/786,470
6. Step 6: Final answer
   x = 3,762,152.01