Finding the Third Proportional to 3,778,863,585 and 8,186,528,784.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,778,863,585 : 8,186,528,784.50 = 8,186,528,784.50 : x
2. Step 2: Convert to fraction form
   3,778,863,585/8,186,528,784.50 = 8,186,528,784.50/x
3. Step 3: Cross multiply
   3,778,863,585x = 8,186,528,784.50 × 8,186,528,784.50
4. Step 4: Simplify right side
   3,778,863,585x = 67,019,253,539,447,046,144
5. Step 5: Solve for x
   x = 67,019,253,539,447,046,144/3,778,863,585
6. Step 6: Final answer
   x = 17,735,293,172.66