Finding the Third Proportional to 17,490,472 and 38,424,416

Step by Step Solution

1. Step 1: Write the proportion equation
   17,490,472 : 38,424,416 = 38,424,416 : x
2. Step 2: Convert to fraction form
   17,490,472/38,424,416 = 38,424,416/x
3. Step 3: Cross multiply
   17,490,472x = 38,424,416 × 38,424,416
4. Step 4: Simplify right side
   17,490,472x = 1,476,435,744,941,056
5. Step 5: Solve for x
   x = 1,476,435,744,941,056/17,490,472
6. Step 6: Final answer
   x = 84,413,716.50