Finding the Third Proportional to 910,591,383.75 and 1,959,290,719.50

Step by Step Solution

1. Step 1: Write the proportion equation
   910,591,383.75 : 1,959,290,719.50 = 1,959,290,719.50 : x
2. Step 2: Convert to fraction form
   910,591,383.75/1,959,290,719.50 = 1,959,290,719.50/x
3. Step 3: Cross multiply
   910,591,383.75x = 1,959,290,719.50 × 1,959,290,719.50
4. Step 4: Simplify right side
   910,591,383.75x = 3,838,820,123,518,827,520
5. Step 5: Solve for x
   x = 3,838,820,123,518,827,520/910,591,383.75
6. Step 6: Final answer
   x = 4,215,743,957.20