Finding the Third Proportional to 3,740,909.06 and 5,638,128.71

Step by Step Solution

1. Step 1: Write the proportion equation
   3,740,909.06 : 5,638,128.71 = 5,638,128.71 : x
2. Step 2: Convert to fraction form
   3,740,909.06/5,638,128.71 = 5,638,128.71/x
3. Step 3: Cross multiply
   3,740,909.06x = 5,638,128.71 × 5,638,128.71
4. Step 4: Simplify right side
   3,740,909.06x = 31,788,495,405,146.20
5. Step 5: Solve for x
   x = 31,788,495,405,146.20/3,740,909.06
6. Step 6: Final answer
   x = 8,497,532.25