Finding the Third Proportional to 37,638,008 and 81,648,880

Step by Step Solution

1. Step 1: Write the proportion equation
   37,638,008 : 81,648,880 = 81,648,880 : x
2. Step 2: Convert to fraction form
   37,638,008/81,648,880 = 81,648,880/x
3. Step 3: Cross multiply
   37,638,008x = 81,648,880 × 81,648,880
4. Step 4: Simplify right side
   37,638,008x = 6,666,539,605,254,400
5. Step 5: Solve for x
   x = 6,666,539,605,254,400/37,638,008
6. Step 6: Final answer
   x = 177,122,540.74