Finding the Third Proportional to 1,639,964 and 3,602,792

Step by Step Solution

1. Step 1: Write the proportion equation
   1,639,964 : 3,602,792 = 3,602,792 : x
2. Step 2: Convert to fraction form
   1,639,964/3,602,792 = 3,602,792/x
3. Step 3: Cross multiply
   1,639,964x = 3,602,792 × 3,602,792
4. Step 4: Simplify right side
   1,639,964x = 12,980,110,195,264
5. Step 5: Solve for x
   x = 12,980,110,195,264/1,639,964
6. Step 6: Final answer
   x = 7,914,875.08