Finding the Third Proportional to 4,309,902 and 9,427,536

Step by Step Solution

1. Step 1: Write the proportion equation
   4,309,902 : 9,427,536 = 9,427,536 : x
2. Step 2: Convert to fraction form
   4,309,902/9,427,536 = 9,427,536/x
3. Step 3: Cross multiply
   4,309,902x = 9,427,536 × 9,427,536
4. Step 4: Simplify right side
   4,309,902x = 88,878,435,031,296
5. Step 5: Solve for x
   x = 88,878,435,031,296/4,309,902
6. Step 6: Final answer
   x = 20,621,915.54