Finding the Third Proportional to 30,261,079.50 and 64,930,536

Step by Step Solution

1. Step 1: Write the proportion equation
   30,261,079.50 : 64,930,536 = 64,930,536 : x
2. Step 2: Convert to fraction form
   30,261,079.50/64,930,536 = 64,930,536/x
3. Step 3: Cross multiply
   30,261,079.50x = 64,930,536 × 64,930,536
4. Step 4: Simplify right side
   30,261,079.50x = 4,215,974,505,247,296
5. Step 5: Solve for x
   x = 4,215,974,505,247,296/30,261,079.50
6. Step 6: Final answer
   x = 139,320,030.05