Finding the Third Proportional to 1,791,512,567.86 and 3,927,398,903.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,791,512,567.86 : 3,927,398,903.72 = 3,927,398,903.72 : x
2. Step 2: Convert to fraction form
   1,791,512,567.86/3,927,398,903.72 = 3,927,398,903.72/x
3. Step 3: Cross multiply
   1,791,512,567.86x = 3,927,398,903.72 × 3,927,398,903.72
4. Step 4: Simplify right side
   1,791,512,567.86x = 15,424,462,148,931,633,152
5. Step 5: Solve for x
   x = 15,424,462,148,931,633,152/1,791,512,567.86
6. Step 6: Final answer
   x = 8,609,742,641.86