Finding the Third Proportional to 3,880,128 and 8,465,088

Step by Step Solution

1. Step 1: Write the proportion equation
   3,880,128 : 8,465,088 = 8,465,088 : x
2. Step 2: Convert to fraction form
   3,880,128/8,465,088 = 8,465,088/x
3. Step 3: Cross multiply
   3,880,128x = 8,465,088 × 8,465,088
4. Step 4: Simplify right side
   3,880,128x = 71,657,714,847,744
5. Step 5: Solve for x
   x = 71,657,714,847,744/3,880,128
6. Step 6: Final answer
   x = 18,467,873.96