Finding the Third Proportional to 1,643,352 and 3,589,139

Step by Step Solution

1. Step 1: Write the proportion equation
   1,643,352 : 3,589,139 = 3,589,139 : x
2. Step 2: Convert to fraction form
   1,643,352/3,589,139 = 3,589,139/x
3. Step 3: Cross multiply
   1,643,352x = 3,589,139 × 3,589,139
4. Step 4: Simplify right side
   1,643,352x = 12,881,918,761,321
5. Step 5: Solve for x
   x = 12,881,918,761,321/1,643,352
6. Step 6: Final answer
   x = 7,838,806.76