Finding the Third Proportional to 18,898,478,199.50 and 40,492,566,109.50

Step by Step Solution

1. Step 1: Write the proportion equation
   18,898,478,199.50 : 40,492,566,109.50 = 40,492,566,109.50 : x
2. Step 2: Convert to fraction form
   18,898,478,199.50/40,492,566,109.50 = 40,492,566,109.50/x
3. Step 3: Cross multiply
   18,898,478,199.50x = 40,492,566,109.50 × 40,492,566,109.50
4. Step 4: Simplify right side
   18,898,478,199.50x = 1,639,647,910,132,228,030,464
5. Step 5: Solve for x
   x = 1,639,647,910,132,228,030,464/18,898,478,199.50
6. Step 6: Final answer
   x = 86,760,843,535.84