Finding the Third Proportional to 123,485,518.50 and 243,848,001

Step by Step Solution

1. Step 1: Write the proportion equation
   123,485,518.50 : 243,848,001 = 243,848,001 : x
2. Step 2: Convert to fraction form
   123,485,518.50/243,848,001 = 243,848,001/x
3. Step 3: Cross multiply
   123,485,518.50x = 243,848,001 × 243,848,001
4. Step 4: Simplify right side
   123,485,518.50x = 59,461,847,591,696,000
5. Step 5: Solve for x
   x = 59,461,847,591,696,000/123,485,518.50
6. Step 6: Final answer
   x = 481,528,913.79