Finding the Third Proportional to 87,759,642 and 189,005,460

Step by Step Solution

1. Step 1: Write the proportion equation
   87,759,642 : 189,005,460 = 189,005,460 : x
2. Step 2: Convert to fraction form
   87,759,642/189,005,460 = 189,005,460/x
3. Step 3: Cross multiply
   87,759,642x = 189,005,460 × 189,005,460
4. Step 4: Simplify right side
   87,759,642x = 35,723,063,909,811,600
5. Step 5: Solve for x
   x = 35,723,063,909,811,600/87,759,642
6. Step 6: Final answer
   x = 407,055,716.00