Finding the Third Proportional to 18,243,748 and 39,662,936

Step by Step Solution

1. Step 1: Write the proportion equation
   18,243,748 : 39,662,936 = 39,662,936 : x
2. Step 2: Convert to fraction form
   18,243,748/39,662,936 = 39,662,936/x
3. Step 3: Cross multiply
   18,243,748x = 39,662,936 × 39,662,936
4. Step 4: Simplify right side
   18,243,748x = 1,573,148,492,140,096
5. Step 5: Solve for x
   x = 1,573,148,492,140,096/18,243,748
6. Step 6: Final answer
   x = 86,229,457.46