Finding the Third Proportional to 13,309,229 and 19,875,139

Step by Step Solution

1. Step 1: Write the proportion equation
   13,309,229 : 19,875,139 = 19,875,139 : x
2. Step 2: Convert to fraction form
   13,309,229/19,875,139 = 19,875,139/x
3. Step 3: Cross multiply
   13,309,229x = 19,875,139 × 19,875,139
4. Step 4: Simplify right side
   13,309,229x = 395,021,150,269,321
5. Step 5: Solve for x
   x = 395,021,150,269,321/13,309,229
6. Step 6: Final answer
   x = 29,680,242.96