Finding the Third Proportional to 10,017,490 and 15,875,128

Step by Step Solution

1. Step 1: Write the proportion equation
   10,017,490 : 15,875,128 = 15,875,128 : x
2. Step 2: Convert to fraction form
   10,017,490/15,875,128 = 15,875,128/x
3. Step 3: Cross multiply
   10,017,490x = 15,875,128 × 15,875,128
4. Step 4: Simplify right side
   10,017,490x = 252,019,689,016,384
5. Step 5: Solve for x
   x = 252,019,689,016,384/10,017,490
6. Step 6: Final answer
   x = 25,157,967.62