Finding the Third Proportional to 30,991,078 and 67,562,294

Step by Step Solution

1. Step 1: Write the proportion equation
   30,991,078 : 67,562,294 = 67,562,294 : x
2. Step 2: Convert to fraction form
   30,991,078/67,562,294 = 67,562,294/x
3. Step 3: Cross multiply
   30,991,078x = 67,562,294 × 67,562,294
4. Step 4: Simplify right side
   30,991,078x = 4,564,663,570,542,436
5. Step 5: Solve for x
   x = 4,564,663,570,542,436/30,991,078
6. Step 6: Final answer
   x = 147,289,602.85