Finding the Third Proportional to 3,689,397 and 8,105,152.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,689,397 : 8,105,152.50 = 8,105,152.50 : x
2. Step 2: Convert to fraction form
   3,689,397/8,105,152.50 = 8,105,152.50/x
3. Step 3: Cross multiply
   3,689,397x = 8,105,152.50 × 8,105,152.50
4. Step 4: Simplify right side
   3,689,397x = 65,693,497,048,256.25
5. Step 5: Solve for x
   x = 65,693,497,048,256.25/3,689,397
6. Step 6: Final answer
   x = 17,806,025.50