Finding the Third Proportional to 1,572,788 and 3,402,640

Step by Step Solution

1. Step 1: Write the proportion equation
   1,572,788 : 3,402,640 = 3,402,640 : x
2. Step 2: Convert to fraction form
   1,572,788/3,402,640 = 3,402,640/x
3. Step 3: Cross multiply
   1,572,788x = 3,402,640 × 3,402,640
4. Step 4: Simplify right side
   1,572,788x = 11,577,958,969,600
5. Step 5: Solve for x
   x = 11,577,958,969,600/1,572,788
6. Step 6: Final answer
   x = 7,361,423.77