Finding the Third Proportional to 30,216,440 and 64,740,442

Step by Step Solution

1. Step 1: Write the proportion equation
   30,216,440 : 64,740,442 = 64,740,442 : x
2. Step 2: Convert to fraction form
   30,216,440/64,740,442 = 64,740,442/x
3. Step 3: Cross multiply
   30,216,440x = 64,740,442 × 64,740,442
4. Step 4: Simplify right side
   30,216,440x = 4,191,324,830,355,364
5. Step 5: Solve for x
   x = 4,191,324,830,355,364/30,216,440
6. Step 6: Final answer
   x = 138,710,080.68