Finding the Third Proportional to 99,434,737,768.50 and 213,052,572,945

Step by Step Solution

1. Step 1: Write the proportion equation
   99,434,737,768.50 : 213,052,572,945 = 213,052,572,945 : x
2. Step 2: Convert to fraction form
   99,434,737,768.50/213,052,572,945 = 213,052,572,945/x
3. Step 3: Cross multiply
   99,434,737,768.50x = 213,052,572,945 × 213,052,572,945
4. Step 4: Simplify right side
   99,434,737,768.50x = 45,391,398,838,484,546,355,200
5. Step 5: Solve for x
   x = 45,391,398,838,484,546,355,200/99,434,737,768.50
6. Step 6: Final answer
   x = 456,494,378,696.54