Finding the Third Proportional to 4,064,672 and 8,585,536

Step by Step Solution

1. Step 1: Write the proportion equation
   4,064,672 : 8,585,536 = 8,585,536 : x
2. Step 2: Convert to fraction form
   4,064,672/8,585,536 = 8,585,536/x
3. Step 3: Cross multiply
   4,064,672x = 8,585,536 × 8,585,536
4. Step 4: Simplify right side
   4,064,672x = 73,711,428,407,296
5. Step 5: Solve for x
   x = 73,711,428,407,296/4,064,672
6. Step 6: Final answer
   x = 18,134,655.98