Finding the Third Proportional to 8,354,877,003 and 12,639,946,522.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,354,877,003 : 12,639,946,522.50 = 12,639,946,522.50 : x
2. Step 2: Convert to fraction form
   8,354,877,003/12,639,946,522.50 = 12,639,946,522.50/x
3. Step 3: Cross multiply
   8,354,877,003x = 12,639,946,522.50 × 12,639,946,522.50
4. Step 4: Simplify right side
   8,354,877,003x = 159,768,248,091,659,829,248
5. Step 5: Solve for x
   x = 159,768,248,091,659,829,248/8,354,877,003
6. Step 6: Final answer
   x = 19,122,752,858.52