Finding the Third Proportional to 35,665,440 and 78,168,384

Step by Step Solution

1. Step 1: Write the proportion equation
   35,665,440 : 78,168,384 = 78,168,384 : x
2. Step 2: Convert to fraction form
   35,665,440/78,168,384 = 78,168,384/x
3. Step 3: Cross multiply
   35,665,440x = 78,168,384 × 78,168,384
4. Step 4: Simplify right side
   35,665,440x = 6,110,296,257,171,456
5. Step 5: Solve for x
   x = 6,110,296,257,171,456/35,665,440
6. Step 6: Final answer
   x = 171,322,609.71