Finding the Third Proportional to 455,427,589.50 and 699,714,139.50

Step by Step Solution

1. Step 1: Write the proportion equation
   455,427,589.50 : 699,714,139.50 = 699,714,139.50 : x
2. Step 2: Convert to fraction form
   455,427,589.50/699,714,139.50 = 699,714,139.50/x
3. Step 3: Cross multiply
   455,427,589.50x = 699,714,139.50 × 699,714,139.50
4. Step 4: Simplify right side
   455,427,589.50x = 489,599,877,016,225,472
5. Step 5: Solve for x
   x = 489,599,877,016,225,472/455,427,589.50
6. Step 6: Final answer
   x = 1,075,033,415.42