Finding the Third Proportional to 1,564,921 and 3,428,732

Step by Step Solution

1. Step 1: Write the proportion equation
   1,564,921 : 3,428,732 = 3,428,732 : x
2. Step 2: Convert to fraction form
   1,564,921/3,428,732 = 3,428,732/x
3. Step 3: Cross multiply
   1,564,921x = 3,428,732 × 3,428,732
4. Step 4: Simplify right side
   1,564,921x = 11,756,203,127,824
5. Step 5: Solve for x
   x = 11,756,203,127,824/1,564,921
6. Step 6: Final answer
   x = 7,512,330.10