Finding the Third Proportional to 91,072,279.50 and 139,898,160

Step by Step Solution

1. Step 1: Write the proportion equation
   91,072,279.50 : 139,898,160 = 139,898,160 : x
2. Step 2: Convert to fraction form
   91,072,279.50/139,898,160 = 139,898,160/x
3. Step 3: Cross multiply
   91,072,279.50x = 139,898,160 × 139,898,160
4. Step 4: Simplify right side
   91,072,279.50x = 19,571,495,171,385,600
5. Step 5: Solve for x
   x = 19,571,495,171,385,600/91,072,279.50
6. Step 6: Final answer
   x = 214,900,684.15