Finding the Third Proportional to 7,909,256 and 12,326,359

Step by Step Solution

1. Step 1: Write the proportion equation
   7,909,256 : 12,326,359 = 12,326,359 : x
2. Step 2: Convert to fraction form
   7,909,256/12,326,359 = 12,326,359/x
3. Step 3: Cross multiply
   7,909,256x = 12,326,359 × 12,326,359
4. Step 4: Simplify right side
   7,909,256x = 151,939,126,196,881
5. Step 5: Solve for x
   x = 151,939,126,196,881/7,909,256
6. Step 6: Final answer
   x = 19,210,293.13