Finding the Third Proportional to 42,571,176 and 64,919,486

Step by Step Solution

1. Step 1: Write the proportion equation
   42,571,176 : 64,919,486 = 64,919,486 : x
2. Step 2: Convert to fraction form
   42,571,176/64,919,486 = 64,919,486/x
3. Step 3: Cross multiply
   42,571,176x = 64,919,486 × 64,919,486
4. Step 4: Simplify right side
   42,571,176x = 4,214,539,662,504,196
5. Step 5: Solve for x
   x = 4,214,539,662,504,196/42,571,176
6. Step 6: Final answer
   x = 98,999,841.17