Finding the Third Proportional to 5,639,053 and 8,460,308

Step by Step Solution

1. Step 1: Write the proportion equation
   5,639,053 : 8,460,308 = 8,460,308 : x
2. Step 2: Convert to fraction form
   5,639,053/8,460,308 = 8,460,308/x
3. Step 3: Cross multiply
   5,639,053x = 8,460,308 × 8,460,308
4. Step 4: Simplify right side
   5,639,053x = 71,576,811,454,864
5. Step 5: Solve for x
   x = 71,576,811,454,864/5,639,053
6. Step 6: Final answer
   x = 12,693,055.28