Finding the Third Proportional to 148,392,963 and 317,164,061

Step by Step Solution

1. Step 1: Write the proportion equation
   148,392,963 : 317,164,061 = 317,164,061 : x
2. Step 2: Convert to fraction form
   148,392,963/317,164,061 = 317,164,061/x
3. Step 3: Cross multiply
   148,392,963x = 317,164,061 × 317,164,061
4. Step 4: Simplify right side
   148,392,963x = 100,593,041,590,011,728
5. Step 5: Solve for x
   x = 100,593,041,590,011,728/148,392,963
6. Step 6: Final answer
   x = 677,882,829.19