Finding the Third Proportional to 9,238,536,229.50 and 18,966,830,602.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,238,536,229.50 : 18,966,830,602.50 = 18,966,830,602.50 : x
2. Step 2: Convert to fraction form
   9,238,536,229.50/18,966,830,602.50 = 18,966,830,602.50/x
3. Step 3: Cross multiply
   9,238,536,229.50x = 18,966,830,602.50 × 18,966,830,602.50
4. Step 4: Simplify right side
   9,238,536,229.50x = 359,740,663,103,930,499,072
5. Step 5: Solve for x
   x = 359,740,663,103,930,499,072/9,238,536,229.50
6. Step 6: Final answer
   x = 38,939,140,808.39