Finding the Third Proportional to 5,142,428 and 10,710,490

Step by Step Solution

1. Step 1: Write the proportion equation
   5,142,428 : 10,710,490 = 10,710,490 : x
2. Step 2: Convert to fraction form
   5,142,428/10,710,490 = 10,710,490/x
3. Step 3: Cross multiply
   5,142,428x = 10,710,490 × 10,710,490
4. Step 4: Simplify right side
   5,142,428x = 114,714,596,040,100
5. Step 5: Solve for x
   x = 114,714,596,040,100/5,142,428
6. Step 6: Final answer
   x = 22,307,477.33