Finding the Third Proportional to 42,571,173 and 64,919,481.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,571,173 : 64,919,481.50 = 64,919,481.50 : x
2. Step 2: Convert to fraction form
   42,571,173/64,919,481.50 = 64,919,481.50/x
3. Step 3: Cross multiply
   42,571,173x = 64,919,481.50 × 64,919,481.50
4. Step 4: Simplify right side
   42,571,173x = 4,214,539,078,228,842
5. Step 5: Solve for x
   x = 4,214,539,078,228,842/42,571,173
6. Step 6: Final answer
   x = 98,999,834.42