Finding the Third Proportional to 8,440,867,870.31 and 17,973,433,657.69

Step by Step Solution

1. Step 1: Write the proportion equation
   8,440,867,870.31 : 17,973,433,657.69 = 17,973,433,657.69 : x
2. Step 2: Convert to fraction form
   8,440,867,870.31/17,973,433,657.69 = 17,973,433,657.69/x
3. Step 3: Cross multiply
   8,440,867,870.31x = 17,973,433,657.69 × 17,973,433,657.69
4. Step 4: Simplify right side
   8,440,867,870.31x = 323,044,317,447,275,872,256
5. Step 5: Solve for x
   x = 323,044,317,447,275,872,256/8,440,867,870.31
6. Step 6: Final answer
   x = 38,271,457,675.99