Finding the Third Proportional to 1,089,532,886.25 and 1,528,830,322.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,089,532,886.25 : 1,528,830,322.88 = 1,528,830,322.88 : x
2. Step 2: Convert to fraction form
   1,089,532,886.25/1,528,830,322.88 = 1,528,830,322.88/x
3. Step 3: Cross multiply
   1,089,532,886.25x = 1,528,830,322.88 × 1,528,830,322.88
4. Step 4: Simplify right side
   1,089,532,886.25x = 2,337,322,156,142,076,928
5. Step 5: Solve for x
   x = 2,337,322,156,142,076,928/1,089,532,886.25
6. Step 6: Final answer
   x = 2,145,251,589.59