Finding the Third Proportional to 2,015,623,915.50 and 3,129,558,025.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,015,623,915.50 : 3,129,558,025.50 = 3,129,558,025.50 : x
2. Step 2: Convert to fraction form
   2,015,623,915.50/3,129,558,025.50 = 3,129,558,025.50/x
3. Step 3: Cross multiply
   2,015,623,915.50x = 3,129,558,025.50 × 3,129,558,025.50
4. Step 4: Simplify right side
   2,015,623,915.50x = 9,794,133,434,971,459,584
5. Step 5: Solve for x
   x = 9,794,133,434,971,459,584/2,015,623,915.50
6. Step 6: Final answer
   x = 4,859,107,574.41