Finding the Third Proportional to 74,943,382 and 173,483,128

Step by Step Solution

1. Step 1: Write the proportion equation
   74,943,382 : 173,483,128 = 173,483,128 : x
2. Step 2: Convert to fraction form
   74,943,382/173,483,128 = 173,483,128/x
3. Step 3: Cross multiply
   74,943,382x = 173,483,128 × 173,483,128
4. Step 4: Simplify right side
   74,943,382x = 30,096,395,700,664,384
5. Step 5: Solve for x
   x = 30,096,395,700,664,384/74,943,382
6. Step 6: Final answer
   x = 401,588,437.80