Finding the Third Proportional to 18,043,906.50 and 42,103,902

Step by Step Solution

1. Step 1: Write the proportion equation
   18,043,906.50 : 42,103,902 = 42,103,902 : x
2. Step 2: Convert to fraction form
   18,043,906.50/42,103,902 = 42,103,902/x
3. Step 3: Cross multiply
   18,043,906.50x = 42,103,902 × 42,103,902
4. Step 4: Simplify right side
   18,043,906.50x = 1,772,738,563,625,604
5. Step 5: Solve for x
   x = 1,772,738,563,625,604/18,043,906.50
6. Step 6: Final answer
   x = 98,245,829.62