Finding the Third Proportional to 503,383,312.50 and 1,186,614,427.50

Step by Step Solution

1. Step 1: Write the proportion equation
   503,383,312.50 : 1,186,614,427.50 = 1,186,614,427.50 : x
2. Step 2: Convert to fraction form
   503,383,312.50/1,186,614,427.50 = 1,186,614,427.50/x
3. Step 3: Cross multiply
   503,383,312.50x = 1,186,614,427.50 × 1,186,614,427.50
4. Step 4: Simplify right side
   503,383,312.50x = 1,408,053,799,551,152,640
5. Step 5: Solve for x
   x = 1,408,053,799,551,152,640/503,383,312.50
6. Step 6: Final answer
   x = 2,797,180,130.10