Finding the Third Proportional to 13,969,142 and 20,867,683.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,969,142 : 20,867,683.50 = 20,867,683.50 : x
2. Step 2: Convert to fraction form
   13,969,142/20,867,683.50 = 20,867,683.50/x
3. Step 3: Cross multiply
   13,969,142x = 20,867,683.50 × 20,867,683.50
4. Step 4: Simplify right side
   13,969,142x = 435,460,214,656,172.25
5. Step 5: Solve for x
   x = 435,460,214,656,172.25/13,969,142
6. Step 6: Final answer
   x = 31,173,010.82