Finding the Third Proportional to 209,707,412 and 314,561,150

Step by Step Solution

1. Step 1: Write the proportion equation
   209,707,412 : 314,561,150 = 314,561,150 : x
2. Step 2: Convert to fraction form
   209,707,412/314,561,150 = 314,561,150/x
3. Step 3: Cross multiply
   209,707,412x = 314,561,150 × 314,561,150
4. Step 4: Simplify right side
   209,707,412x = 98,948,717,089,322,496
5. Step 5: Solve for x
   x = 98,948,717,089,322,496/209,707,412
6. Step 6: Final answer
   x = 471,841,773.00