Finding the Third Proportional to 30,602,920 and 64,659,942

Step by Step Solution

1. Step 1: Write the proportion equation
   30,602,920 : 64,659,942 = 64,659,942 : x
2. Step 2: Convert to fraction form
   30,602,920/64,659,942 = 64,659,942/x
3. Step 3: Cross multiply
   30,602,920x = 64,659,942 × 64,659,942
4. Step 4: Simplify right side
   30,602,920x = 4,180,908,099,443,364
5. Step 5: Solve for x
   x = 4,180,908,099,443,364/30,602,920
6. Step 6: Final answer
   x = 136,617,946.90