Finding the Third Proportional to 71,946.98 and 100,638.07

Step by Step Solution

1. Step 1: Write the proportion equation
   71,946.98 : 100,638.07 = 100,638.07 : x
2. Step 2: Convert to fraction form
   71,946.98/100,638.07 = 100,638.07/x
3. Step 3: Cross multiply
   71,946.98x = 100,638.07 × 100,638.07
4. Step 4: Simplify right side
   71,946.98x = 10,128,021,196.22
5. Step 5: Solve for x
   x = 10,128,021,196.22/71,946.98
6. Step 6: Final answer
   x = 140,770.61