Finding the Third Proportional to 123,485,520 and 243,848,003

Step by Step Solution

1. Step 1: Write the proportion equation
   123,485,520 : 243,848,003 = 243,848,003 : x
2. Step 2: Convert to fraction form
   123,485,520/243,848,003 = 243,848,003/x
3. Step 3: Cross multiply
   123,485,520x = 243,848,003 × 243,848,003
4. Step 4: Simplify right side
   123,485,520x = 59,461,848,567,088,008
5. Step 5: Solve for x
   x = 59,461,848,567,088,008/123,485,520
6. Step 6: Final answer
   x = 481,528,915.84