Finding the Third Proportional to 1,142,523,819 and 1,578,708,367.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,142,523,819 : 1,578,708,367.50 = 1,578,708,367.50 : x
2. Step 2: Convert to fraction form
   1,142,523,819/1,578,708,367.50 = 1,578,708,367.50/x
3. Step 3: Cross multiply
   1,142,523,819x = 1,578,708,367.50 × 1,578,708,367.50
4. Step 4: Simplify right side
   1,142,523,819x = 2,492,320,109,614,515,200
5. Step 5: Solve for x
   x = 2,492,320,109,614,515,200/1,142,523,819
6. Step 6: Final answer
   x = 2,181,416,324.25