Finding the Third Proportional to 852,698,434 and 1,865,872,123

Step by Step Solution

1. Step 1: Write the proportion equation
   852,698,434 : 1,865,872,123 = 1,865,872,123 : x
2. Step 2: Convert to fraction form
   852,698,434/1,865,872,123 = 1,865,872,123/x
3. Step 3: Cross multiply
   852,698,434x = 1,865,872,123 × 1,865,872,123
4. Step 4: Simplify right side
   852,698,434x = 3,481,478,779,388,527,104
5. Step 5: Solve for x
   x = 3,481,478,779,388,527,104/852,698,434
6. Step 6: Final answer
   x = 4,082,895,711.51