Finding the Third Proportional to 3,964,226 and 8,656,534

Step by Step Solution

1. Step 1: Write the proportion equation
   3,964,226 : 8,656,534 = 8,656,534 : x
2. Step 2: Convert to fraction form
   3,964,226/8,656,534 = 8,656,534/x
3. Step 3: Cross multiply
   3,964,226x = 8,656,534 × 8,656,534
4. Step 4: Simplify right side
   3,964,226x = 74,935,580,893,156
5. Step 5: Solve for x
   x = 74,935,580,893,156/3,964,226
6. Step 6: Final answer
   x = 18,902,953.79