Finding the Third Proportional to 109,390,770 and 236,942,401.50

Step by Step Solution

1. Step 1: Write the proportion equation
   109,390,770 : 236,942,401.50 = 236,942,401.50 : x
2. Step 2: Convert to fraction form
   109,390,770/236,942,401.50 = 236,942,401.50/x
3. Step 3: Cross multiply
   109,390,770x = 236,942,401.50 × 236,942,401.50
4. Step 4: Simplify right side
   109,390,770x = 56,141,701,628,587,200
5. Step 5: Solve for x
   x = 56,141,701,628,587,200/109,390,770
6. Step 6: Final answer
   x = 513,221,560.00