Finding the Third Proportional to 9,279,680 and 19,673,472

Step by Step Solution

1. Step 1: Write the proportion equation
   9,279,680 : 19,673,472 = 19,673,472 : x
2. Step 2: Convert to fraction form
   9,279,680/19,673,472 = 19,673,472/x
3. Step 3: Cross multiply
   9,279,680x = 19,673,472 × 19,673,472
4. Step 4: Simplify right side
   9,279,680x = 387,045,500,534,784
5. Step 5: Solve for x
   x = 387,045,500,534,784/9,279,680
6. Step 6: Final answer
   x = 41,708,927.52