Finding the Third Proportional to 10,144,654 and 20,643,602

Step by Step Solution

1. Step 1: Write the proportion equation
   10,144,654 : 20,643,602 = 20,643,602 : x
2. Step 2: Convert to fraction form
   10,144,654/20,643,602 = 20,643,602/x
3. Step 3: Cross multiply
   10,144,654x = 20,643,602 × 20,643,602
4. Step 4: Simplify right side
   10,144,654x = 426,158,303,534,404
5. Step 5: Solve for x
   x = 426,158,303,534,404/10,144,654
6. Step 6: Final answer
   x = 42,008,165.44