Finding the Third Proportional to 1,583,420 and 3,415,672

Step by Step Solution

1. Step 1: Write the proportion equation
   1,583,420 : 3,415,672 = 3,415,672 : x
2. Step 2: Convert to fraction form
   1,583,420/3,415,672 = 3,415,672/x
3. Step 3: Cross multiply
   1,583,420x = 3,415,672 × 3,415,672
4. Step 4: Simplify right side
   1,583,420x = 11,666,815,211,584
5. Step 5: Solve for x
   x = 11,666,815,211,584/1,583,420
6. Step 6: Final answer
   x = 7,368,111.56