Finding the Third Proportional to 20,902,392 and 42,644,592

Step by Step Solution

1. Step 1: Write the proportion equation
   20,902,392 : 42,644,592 = 42,644,592 : x
2. Step 2: Convert to fraction form
   20,902,392/42,644,592 = 42,644,592/x
3. Step 3: Cross multiply
   20,902,392x = 42,644,592 × 42,644,592
4. Step 4: Simplify right side
   20,902,392x = 1,818,561,226,846,464
5. Step 5: Solve for x
   x = 1,818,561,226,846,464/20,902,392
6. Step 6: Final answer
   x = 87,002,541.47