Finding the Third Proportional to 19,902,493.13 and 42,571,608.75

Step by Step Solution

1. Step 1: Write the proportion equation
   19,902,493.13 : 42,571,608.75 = 42,571,608.75 : x
2. Step 2: Convert to fraction form
   19,902,493.13/42,571,608.75 = 42,571,608.75/x
3. Step 3: Cross multiply
   19,902,493.13x = 42,571,608.75 × 42,571,608.75
4. Step 4: Simplify right side
   19,902,493.13x = 1,812,341,871,563,076.50
5. Step 5: Solve for x
   x = 1,812,341,871,563,076.50/19,902,493.13
6. Step 6: Final answer
   x = 91,061,047.49