Finding the Third Proportional to 17,731,584 and 38,780,928

Step by Step Solution

1. Step 1: Write the proportion equation
   17,731,584 : 38,780,928 = 38,780,928 : x
2. Step 2: Convert to fraction form
   17,731,584/38,780,928 = 38,780,928/x
3. Step 3: Cross multiply
   17,731,584x = 38,780,928 × 38,780,928
4. Step 4: Simplify right side
   17,731,584x = 1,503,960,376,541,184
5. Step 5: Solve for x
   x = 1,503,960,376,541,184/17,731,584
6. Step 6: Final answer
   x = 84,818,162.69