Finding the Third Proportional to 821,808,885.75 and 1,759,978,807.50

Step by Step Solution

1. Step 1: Write the proportion equation
   821,808,885.75 : 1,759,978,807.50 = 1,759,978,807.50 : x
2. Step 2: Convert to fraction form
   821,808,885.75/1,759,978,807.50 = 1,759,978,807.50/x
3. Step 3: Cross multiply
   821,808,885.75x = 1,759,978,807.50 × 1,759,978,807.50
4. Step 4: Simplify right side
   821,808,885.75x = 3,097,525,402,849,122,304
5. Step 5: Solve for x
   x = 3,097,525,402,849,122,304/821,808,885.75
6. Step 6: Final answer
   x = 3,769,155,404.08