Finding the Third Proportional to 8,340,584 and 12,893,964

Step by Step Solution

1. Step 1: Write the proportion equation
   8,340,584 : 12,893,964 = 12,893,964 : x
2. Step 2: Convert to fraction form
   8,340,584/12,893,964 = 12,893,964/x
3. Step 3: Cross multiply
   8,340,584x = 12,893,964 × 12,893,964
4. Step 4: Simplify right side
   8,340,584x = 166,254,307,633,296
5. Step 5: Solve for x
   x = 166,254,307,633,296/8,340,584
6. Step 6: Final answer
   x = 19,933,173.46