Finding the Third Proportional to 5,981,389.31 and 13,120,693.88

Step by Step Solution

1. Step 1: Write the proportion equation
   5,981,389.31 : 13,120,693.88 = 13,120,693.88 : x
2. Step 2: Convert to fraction form
   5,981,389.31/13,120,693.88 = 13,120,693.88/x
3. Step 3: Cross multiply
   5,981,389.31x = 13,120,693.88 × 13,120,693.88
4. Step 4: Simplify right side
   5,981,389.31x = 172,152,607,761,462.50
5. Step 5: Solve for x
   x = 172,152,607,761,462.50/5,981,389.31
6. Step 6: Final answer
   x = 28,781,374.82